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1. Estimate the slope of the graph at the points ( x 1 , y 1 ) and ( x 2 , y 2 )

ID: 2871820 • Letter: 1

Question

1. Estimate the slope of the graph at the points

(x1, y1) and (x2, y2).

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2. Describe the x-values at which the function is differentiable.

y = 9x2/5

The function is differentiable for all x ±9.

The function is differentiable for all 0 < x < 9.   

The function is differentiable for all x-values.

The function is differentiable for all x 0.

The function is differentiable for all -9 < x < 0.

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Consider the following function.

f(x) = |x 2|

Find the derivative from the left at x = 2. If it does not exist, enter NONE.


Find the derivative from the right at x = 2. If it does not exist, enter NONE.


Is the function differentiable at x = 2?

Yes or No    

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Identify a function f that has the given characteristics.

f(–5) = f(4) = 0; f '(-0.5) = 0, f '(x) < 0 for x < -0.5; f '(x) > 0 for x > -0.5

f(x) =

Sketch the function.

At (x1, y1), slope = At (x2, y2), slope =

Explanation / Answer

Post one more question to get the remaining answer. Thanks

1)

The line passing through (x1,y1) is parallel to x-axis then the slope will be equal to ZERO

The second line (x2,y2) passes through (0,-3) and (1.5,1)

Slope of the line = (y2-y1)/(x2-x1) = (1 + 3)/(1.5) = 4/1.5 = 8/3

2)

The function is not differentiable at x=0, hence the function is differentiable for all points, x not equal to zero

Hence correct answer is Option D