The graph of the function f and a table of selected values of () are shown below. The graph of f has a horizontal tangent line at = 4 and is linear for ≥ 6. a. Approximate the value of ′(5.5) using data from the
table. Show the computations that lead to your answer.
b. Is there a value of x, for 0 < < 6, such that
limℎ→0 ((+ℎ)−())/ℎ= 0 ? Give a reason for your answer.
c. For each of the following limits find the value or explain why it does not exist. (derivative limit formula where x=6)
*please check JPG file!*

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

whatvare the choices

step-by-step explanation:

it should be a.

hope it