Cho hàm số y=fx có bảng biến thiên như sau

Hàm số đạt cực tiểu tại điểm

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Một số câu hỏi khác cùng bài thi.

• Cho hàm số y=fx. Đồ thị của hàm số y=f′x như hình vẽ bên. Hỏi hàm số gx=fx+2018 có bao nhiêu điểm cực trị?
  
  
• [2D1-2.2-4] Cho hàm số . Hàm số  có đồ thị như hình vẽ.   Số điểm cực trị của đồ thị hàm số  là
• Cho hàm số y=ax3+bx2+cx+d ( a , b , c , d ∈ℝ ) có đồ thị như hình vẽ. Số điểm cực trị của hàm số đã cho là
  
  
• Cho hàm số f(x) có bảng biến thiên như sau:
  
  Hàm số đã cho đạt cực tiểu tại
  
• Cho hàm số y=fx liên tục trên ℝ và có bảng biến thiên như sau:
  
  Hỏi hàm số y=fx có bao nhiêu điểm cực trị?
  
• Cho hàm số $f\left(x\right)$ có đạo hàm $f\text{'}\left(x\right)={\left(x-2\right)}^2\left(x-1\right)x^3$ , $\forall x\in ℝ$ . Số điểm cực trị của hàm số đã cho là
  
• Cho hàm số có đồ thị như hình vẽ bên. Số điểm cực trị của hàm số là
  
  
• Cho hàm số y=fx có bảng biến thiên như sau:
  
  Hàm số đạt cực đại tại điểm
  

• Cho hàm số có bảng biến thiên như hình vẽ bên   Cực đại của hàm số là:         

• Cho hàm số y=fx xác định và liên tục trên ℝ và có bảng biến thiên như sau
  
  Khẳng định nào sau đây là đúng?
  
• Cho hàm số y=ax3+bx2+cx+d a,b,c,d∈ℝ có đồ thị như hình vẽ bên.
  
  Số điểm cực trị của hàm số đã cho là
  
  

• Cho hàm số  xác định, liên tục trên  và có bảng biến thiên như sau   Khẳng định nào sau đây đúng?  

• Cho hàm số  xác định và liên tục trên đoạn và có đồ thị là đường cong trong hình vẽ bên. Hàm số  đạt cực đại tại điểm nào sau:  

• Đường cong ở hình bên là đồ thị của hàm số , với  là các số thực. Mệnh đề nào dưới đây đúng?  

• [2D1-2. 6-1] Cho hàm số bậc ba y=f(x) có đồ thị như hình vẽ. Mệnh đề nào dưới đây đúng?
  
  
• Cho hàm số y=fx có bảng biến thiên như sau
  
  Hàm số đạt cực tiểu tại điểm
  
• Cho hàm số y=fx có bảng biến thiên như sau
  
  Giá trị cực tiểu của hàm số đã cho bằng
  
• Cho hàm số y=fx xác định, liên tục trên ℝ\1 và có bảng biến thiên như hình dưới đây.
  .
  Hãy chọn khẳng định đúng.
  

• Cho hàm số  liên tục trên  và có bảng xét dấu của đạo hàm như hình vẽ.        Hàm số  có bao nhiêu điểm cực trị?         

• Cho hàm số y=fx xác định, liên tục trên ℝ và có bảng biến thiên như hình vẽ. Tìm khẳng định đúng?
  
  
  
• Đường cong của hình vẽ bên là đồ thị hàm số y=f′x .
  
  Số điểm cực trị của hàm số y=fx là?
  
  
• Cho hàm số y=ax4+bx2+c a,b,c∈ℝ có đồ thị như hình vẽ bên. Số điểm cực trị của hàm số đã cho là
  
  
  
• Hàm số nào sau đây đạt cực tiểu tai điểm
  
• Cho hàm số y=f(x) có bảng biến thiên như sau
  
  Giá trị cực tiểu của hàm số đã cho bằng
  
• Cho hàm số y=fx liên tục trên ℝ và có bảng xét dấu f′x,f″x như sau
  
  Khẳng định nào sau đây đúng?
  
  
• Cho hàm số f(x) có bảng biến thiên như sau:
  
  Hàm số đạt cực đại tại:
  
• Cho hàm số y=fx liên tục trên ℝ và có đồ thị như hình bên. Hỏi hàm số có bao nhiêu điểm cực trị?
  
  

• Cho hàm số có bảng biến thiên như hình bên. Giá trị cực tiểu của hàm số bằng:         

• Cho hàm số y=fx xác định, liên tục trên ℝ và có bảng biến thiên:
  .
  Khẳng định nào sau đây là khẳng định sai?
  
• Cho hàm số y=f(x) liên tục trên ℝ và có bảng xét dấu của đạo hàm như hình vẽ sau
  
  Hàm số đã cho có bao nhiêu điểm cực trị?
  
• Cho hàm số y=fx có bảng biến thiên như sau
  
  Giá trị cực tiểu của hàm số bằng
  
• Cho hàm số y=fx có bảng biến thiên như hình vẽ. Khẳng định nào sau đây là sai?
  
  
• Cho hàm số y=fx xác định và liên tục trên ℝ . Ta có bảng biến thiên sau:
  
  Khẳng định nào sau đây đúng?
  
• Cho hàm số y=f(x) có đồ thị như hình vẽ. Mệnh đề nào dưới đây đúng?
  
  
• [DS12. C1. 2. D07. c] Tìm giá trị của $m$ để hàm số $y=x^3-3m{x}^2+\left(2m+1\right)x-2$ đạt cực trị tại $x=1$ .
  
• Cho hàm số y=fx có bảng biến thiên như sau
  
  Có bao nhiêu giá trị nguyên của tham số m để đồ thị hàm số gx=fx−3m có 5 điểm cực trị?
  
• Cho hàm số y=fx liên tục trên ℝ và có bảng xét dấu của đạo hàm như hình vẽ. Hàm số đã cho có bao nhiêu điểm cực trị?
  
  
  

• Cho hàm số  liên tục trên  và có bảng xét dấu  như sau           Hàm số  có bao nhiêu điểm cực trị ?

• Cho hàm số y=fx xác định, liên trục trên ℝ và có bảng biến thiên:
  
  Khẳng định nào sau đây là khẳng định đúng?
  
• Hàm số y=fx với đồ thị như hình vẽ có bao nhiêu điểm cực trị ?
  
  

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the word or phrase (A, B, C or D) that best fits the blank space in the following passage:

                                                                        THE PERFORMING ARTS

  In the past, British children were frequently encouraged to try out their performing skills for the benefit of adults. They did this by reading aloud, acting or (31) _______ a musical instrument. As they grew up they were taken to public places of entertainment - the theatre, opera, circus or ballet. They looked forward to these (32) _______ with great excitement and would remember and discuss what they had seen for many weeks afterwards. But nowadays television and computers supply an endless stream of easily (33) _______ entertainment, and children quickly accept these marvelous inventions as a very ordinary part of their everyday lives. For many children, the sense of witnessing a very (34) _______ live performance is gone forever. But all is not lost. The presence of a TV set may have encouraged a very lazy response from (35) _______ in their own homes, but the desire of those with ambitions to become performing artists themselves does not seem to have been at all diminished. And live performances in public are still relatively popular, albeit with an older, more specialist audience.  

  Question 35:

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate to the word or phrase that best fits each of the numbered blanks:

  Traditionally, Americans and Asians have very(20) _____ideas about love and marriage. Americans believe in ‘romantic’ marriage – a boy and a girl are (21)____ to each other, fall in love, and decide to marry each other. Asians, on the other hand, believe in contractual marriage – the parents of the bride and the groom decide on the marriage; and love – if it ever develops – is supposed to follow(22) _____, not precede it. To show the differences, a(23) ______was conducted among American, Chinese and Indian students to determine their attitudes (24)_____ love and marriage.

  Question 24:

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate to the word or phrase that best fits each of the numbered blanks:

  Traditionally, Americans and Asians have very(20) _____ideas about love and marriage. Americans believe in ‘romantic’ marriage – a boy and a girl are (21)____ to each other, fall in love, and decide to marry each other. Asians, on the other hand, believe in contractual marriage – the parents of the bride and the groom decide on the marriage; and love – if it ever develops – is supposed to follow(22) _____, not precede it. To show the differences, a(23) ______was conducted among American, Chinese and Indian students to determine their attitudes (24)_____ love and marriage.

  Question 23:

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 24 to 28:

  A child prodigy of four is receiving computer lessons at Brunei University, in London. Nicholas MacMahon is studying at university because he is too clever for school. A senior lecturer at the university, Valso Koshy, said that the boy was remarkably intelligent. Nicholas spoke fluently before he was one and by the time he was 18 months old, he was taking telephone (24) _______. This was soon followed by conversational French. These are the trademarks of a highly gifted child unusual but not unique. The strange thing about Nicholas is his reading - he taught himself to read before he could speak. Ms. Koshy, an expert (25) _______ gifted children, says Nicholas is quite exceptional. Yet “exceptional” underrates his amazing ability to read, almost from birth. “He was talking when he was one and we realized from the start that he could read,” his father said. “Soon after, he was correcting my spelling, words (26) _______ caterpillar. Now he (27) _______ insects by their Latin names.” The list of achievements is impressive, but frightening. A four-year-old who can (28) _______ a Boeing 747 from a DC 10, devours encyclopedias, read The Daily Telegraph and is well on the way to becoming a violin virtuoso is hardly normal.

  Question 24:

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 24 to 28:

  A child prodigy of four is receiving computer lessons at Brunei University, in London. Nicholas MacMahon is studying at university because he is too clever for school. A senior lecturer at the university, Valso Koshy, said that the boy was remarkably intelligent. Nicholas spoke fluently before he was one and by the time he was 18 months old, he was taking telephone (24) _______. This was soon followed by conversational French. These are the trademarks of a highly gifted child unusual but not unique. The strange thing about Nicholas is his reading - he taught himself to read before he could speak. Ms. Koshy, an expert (25) _______ gifted children, says Nicholas is quite exceptional. Yet “exceptional” underrates his amazing ability to read, almost from birth. “He was talking when he was one and we realized from the start that he could read,” his father said. “Soon after, he was correcting my spelling, words (26) _______ caterpillar. Now he (27) _______ insects by their Latin names.” The list of achievements is impressive, but frightening. A four-year-old who can (28) _______ a Boeing 747 from a DC 10, devours encyclopedias, read The Daily Telegraph and is well on the way to becoming a violin virtuoso is hardly normal.

  Question 25:  

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 24 to 28:

  A child prodigy of four is receiving computer lessons at Brunei University, in London. Nicholas MacMahon is studying at university because he is too clever for school. A senior lecturer at the university, Valso Koshy, said that the boy was remarkably intelligent. Nicholas spoke fluently before he was one and by the time he was 18 months old, he was taking telephone (24) _______. This was soon followed by conversational French. These are the trademarks of a highly gifted child unusual but not unique. The strange thing about Nicholas is his reading - he taught himself to read before he could speak. Ms. Koshy, an expert (25) _______ gifted children, says Nicholas is quite exceptional. Yet “exceptional” underrates his amazing ability to read, almost from birth. “He was talking when he was one and we realized from the start that he could read,” his father said. “Soon after, he was correcting my spelling, words (26) _______ caterpillar. Now he (27) _______ insects by their Latin names.” The list of achievements is impressive, but frightening. A four-year-old who can (28) _______ a Boeing 747 from a DC 10, devours encyclopedias, read The Daily Telegraph and is well on the way to becoming a violin virtuoso is hardly normal.

  Question 27:

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 24 to 28:

  A child prodigy of four is receiving computer lessons at Brunei University, in London. Nicholas MacMahon is studying at university because he is too clever for school. A senior lecturer at the university, Valso Koshy, said that the boy was remarkably intelligent. Nicholas spoke fluently before he was one and by the time he was 18 months old, he was taking telephone (24) _______. This was soon followed by conversational French. These are the trademarks of a highly gifted child unusual but not unique. The strange thing about Nicholas is his reading - he taught himself to read before he could speak. Ms. Koshy, an expert (25) _______ gifted children, says Nicholas is quite exceptional. Yet “exceptional” underrates his amazing ability to read, almost from birth. “He was talking when he was one and we realized from the start that he could read,” his father said. “Soon after, he was correcting my spelling, words (26) _______ caterpillar. Now he (27) _______ insects by their Latin names.” The list of achievements is impressive, but frightening. A four-year-old who can (28) _______ a Boeing 747 from a DC 10, devours encyclopedias, read The Daily Telegraph and is well on the way to becoming a violin virtuoso is hardly normal.

  Question 28:

• Read the passage and mark A, B, C or D to indicate the correct answer to each of the blanks:

   In a small village in North Yorkshire, there is a big old farmhouse ______(31) three families live together. Alice and George and their three children, Joe and Pam and their two children, and Sue and her baby daughter. The adults divide up the work between them. George does the cooking, Joe and Sue do almost the housework. Pam looks after the shopping and ______(32) the repairs, and Alice takes care of the garden. Alice, George and Sue go out to work. Joe works at home ______(33) computer systems, and Pam, who is a painter, looks after the baby during the day. Two of the children go to school in the village, but the three oldest ones go by bus to the secondary school in the nearest town, ten miles away. The three families get ______(34) well, and enjoy their way of life. There are a few difficulties, of course. Their biggest worry at the moment is money - one of the cars needs replacing, and the roof needs some expensive repairs. But this isn't too serious - the bank has agreed to a loan, which they expect to be able to pay back in three years. And they all say they would much rather go on living in their old farmhouse ______(35) move to a luxury flat in a big city.

  Question 33:         

• Read the passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.

  In a small village in North Yorkshire, there is a big old farmhouse ______(31) three families live together. Alice and George and their three children, Joe and Pam and their two children, and Sue and her baby daughter. The adults divide up the work between them. George does the cooking, Joe and Sue do almost the housework. Pam looks after the shopping and ______(32) the repairs, and Alice takes care of the garden. Alice, George and Sue go out to work. Joe works at home ______(33) computer systems, and Pam, who is a painter, looks after the baby during the day. Two of the children go to school in the village, but the three oldest ones go by bus to the secondary school in the nearest town, ten miles away. The three families get ______(34) well, and enjoy their way of life. There are a few difficulties, of course. Their biggest worry at the moment is money- one of the cars needs replacing, and the roof needs some expensive repairs. But this isn't too serious- the bank has agreed to a loan, which they expect to be able to pay back in three years. And they all say they would much rather go on living in their old farmhouse ______(35) move to a luxury flat in a big city.  

  Question 34:

• Read the passage and mark A, B, C or D to indicate the correct answer to each of the blanks:

   In a small village in North Yorkshire, there is a big old farmhouse ______(31) three families live together. Alice and George and their three children, Joe and Pam and their two children, and Sue and her baby daughter. The adults divide up the work between them. George does the cooking, Joe and Sue do almost the housework. Pam looks after the shopping and ______(32) the repairs, and Alice takes care of the garden. Alice, George and Sue go out to work. Joe works at home ______(33) computer systems, and Pam, who is a painter, looks after the baby during the day. Two of the children go to school in the village, but the three oldest ones go by bus to the secondary school in the nearest town, ten miles away. The three families get ______(34) well, and enjoy their way of life. There are a few difficulties, of course. Their biggest worry at the moment is money - one of the cars needs replacing, and the roof needs some expensive repairs. But this isn't too serious - the bank has agreed to a loan, which they expect to be able to pay back in three years. And they all say they would much rather go on living in their old farmhouse ______(35) move to a luxury flat in a big city.

  Question 35: