Use the graph of f(x) below to estimate the value of f ′(0):

graph is an inverted parabola with x intercepts at x equals negative 3 and positive 3 and y intercept at y equals 9.

9
0
1
f ′(0) is undefined

Option B.

Step-by-step explanation:

The given graph is an inverted parabola with x intercepts at x = - 3 and x = 3

and y- intercept at y = 9.

Vertex form of this parabola is represented by y = -(x - h)² + k

where (h, k) are the coordinates of the vertex of this parabola.

Vertex of the given parabola is (0, 9).

So the equation of the parabola will be y = -(x - 0)² + 9

y = -x² + 9

In the function form : f(x) = -x² + 9

Now we can find the derivative of the function as

f'(x) = -2x + 0 [Since derivative of a constant is always 0]

f'(x) = -2x

f'(0) = -2(0)

Therefore, option B. is the answer.

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

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