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Flura [38]
3 years ago
7

Helppppppppppppppppppppppppppppppppppppppppppppppppppp

SAT
2 answers:
ololo11 [35]3 years ago
7 0

Answer:

Working on answer.....

Explanation:

This is an automated message sent by the brainly + the parikh association.

Sever21 [200]3 years ago
5 0

Answer:

1) C

2) B

3) D

4) B

5) A

6) C

7) B

8) D

9) A

10) B

Explanation:

Equation of a  straight  line is y= m x + c

m = slope

c is y- intercept

1) y = (-1/2)x + c

substitute (5,-2)  for (x, y) points in the equation above

c = (1/2)

Therefore, the equation of the line is  y = (-1/2)x + (1/2)

substituting the options A  to D in to the equation to check for equality we find that option C does not lie on the Line  it should have been (4, -1.5)

2) y = (3/4)x + c

substitute (3,3)  for (x, y) points in the equation above

c = (3/4)

Therefore, the equation of the line is  y = (3/4)x + (3/4)

substituting the options A  to D in to the equation to check for equality we find that option B does not lie on the Line  it should have been (-6, -3.75)

3) y = (-1/5)x + c

substitute (-7,2)  for (x, y) points in the equation above

c = (3/5)

Therefore, the equation of the line is  y = (-1/5)x + (3/5)

substituting the options A  to D in to the equation to check for equality we find that option D does not lie on the Line  it should have been (4, -0.2)

4) y = (1/2)x + c

substitute (9,3)  for (x, y) points in the equation above

c = (-3/2)

Therefore, the equation of the line is  y = (1/2)x - (3/2)

substituting the options A  to D in to the equation to check for equality we find that option B does not lie on the Line  it should have been (6, 1.5)

5) y = (-2/3)x + c

substitute (5,3)  for (x, y) points in the equation above

c = (1/3)

Therefore, the equation of the line is  y = (-2/3)x + (1/3)

substituting the options A  to D in to the equation to check for equality we find that option A does not lie on the Line  it should have been (-3, 2.333)

6) y = (1/4)x + c

substitute (5,2)  for (x, y) points in the equation above

c = (3/4)

Therefore, the equation of the line is  y = (1/4)x + (3/4)

substituting the options A  to D in to the equation to check for equality we find that option C does not lie on the Line  it should have been (4, 1.75)

7) y = (-3/2)x + c

substitute (3,-4)  for (x, y) points in the equation above

c = (1/2)

Therefore, the equation of the line is  y = (-3/2)x + (1/2)

substituting the options A  to D in to the equation to check for equality we find that option B does not lie on the Line  it should have been (2, -2.5)

8) y = (3/5)x + c

substitute (3,2)  for (x, y) points in the equation above

c = (1/5)

Therefore, the equation of the line is  y = (3/5)x + (1/5)

substituting the options A  to D in to the equation to check for equality we find that option D does not lie on the Line  it should have been (-4, -2.2)

9) y = (1/3)x + c

substitute (5,1)  for (x, y) points in the equation above

c = (-2/3)

Therefore, the equation of the line is  y = (1/3)x - (2/3)

substituting the options A  to D in to the equation to check for equality we find that option A does not lie on the Line  it should have been (6, 1.333)

10) y = (-3/4)x + c

substitute (-5,4)  for (x, y) points in the equation above

c = (1/4)

Therefore, the equation of the line is  y = (-3/4)x + (1/4)

substituting the options A  to D in to the equation to check for equality we find that option B does not lie on the Line  it should have been (-2, 1.75)

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  • Additionally, there has to be a change in the sign of f^{\prime\prime}(x)

Researching the problem on the internet, it is found that:

  • For 0 < x < 5, f^{\prime\prime}(x) > 0.
  • For x = 5, f^{\prime\prime}(x) is undefined.
  • For 5 < x < 8, f^{\prime\prime}(x) < 0.
  • For x = 8, f^{\prime\prime}(x) = 0.
  • For 8 < x < 12, f^{\prime\prime}(x) > 0.
  • For x = 12, f^{\prime\prime}(x) = 0.
  • For 12 < x < 16, f^{\prime\prime}(x) > 0.

The two conditions, f^{\prime\prime}(x) = 0 and a change in the signal of f^{\prime\prime}(x) are only respected at x = 8, which is the lone inflection point.

You can learn more about points of inflection at brainly.com/question/10352137

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