Question

The graph below shows a company's profit f(x), in dollars, depending on the price of notebooks x, in dollars, being sold by the company:

graph of quadratic function f of x having x intercepts at ordered pairs negative 0, 0 and 4, 0. The vertex is at 2, 300

Part A: What do the x-intercepts and maximum value of the graph represent? What are the intervals where the function is increasing and decreasing, and what do they represent about the sale and profit? (5 points)

Answer 1

Part B: At one time the profit of the company was at least $220, what domain could possibly produce this profit? (2 points)

Part C: What is an approximate average rate of change of the graph from x = 2 to x = 4, and what does this rate represent? (3 points)

Answer 2

This is the graph:

Answer 3

I will award medals :)

Answer 4

This question was already answered by a few of our lovely OpenStudy members. Here is the link: http://openstudy.com/study#/updates/52cedacfe4b0c694af187019

Answer 5

Okay :)

Answer 6

The graph is different than this one. It should be 300, not 270.

Answer 7

Oh Okay, Sorry my bad :P

Answer 8

Its alright :)

Answer 9

@snazzychazzy

Answer 10

Got any ideas @snazzychazzy ?

Answer 11

For part A i think it would be that once it reached 300 hundred it started to go down for some reason so it is from 2,300 and you would start going left on the x axis and down on the y axis

Answer 12

That is what i think for part A

Answer 13

Okay :) What about Part B?

Answer 14

Ok hang on i was working on part A there i didnt get to part B

Answer 15

Okay

Answer 16

its domain i say would be 1,220

Answer 17

for part B

Answer 18

Okay :)

Answer 19

and part C if it was to change i think would be (4,600) p.s it is not four thousand six hundred

Answer 20

just on the x axis and y axis

Answer 21

So medal?

Answer 22

Yep. :)

Answer 23

:)

Answer 24

YAY YOU MADE ME LVL 52 YESH

Answer 25

i make you lvl 43 :)

Answer 26

see

Answer 27

Yep :)

Answer 28

Yipee! So happy! :)