Question

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

Answer 1

Part B: If at one time the profit of the company was at least $60, what domain could possibly produce this profit? (2 points)

Part C: What is an approximate average rate of change of the graph from x = 3 to x = 5, and what does this rate represent? (3 points)

Answer 2

helllpppp!!!!!!!!!!!!!!

Answer 3

@iGreen. @ZnappyDooZ @chosenmatt

Answer 4

Look at 60 on the y-axis..see what 'x' is on the graph.

Answer 5

0 and 6 ?

Answer 6

@iGreen.

Answer 7

No, you're looking at where the parabola crosses the x-axis..

We're looking at the y-axis..the one that goes up and down..locate 60 and go to the right..there will be two places and see what 'x' is for those.

Answer 8

Did you find them yet?

Answer 9

?????????????????

Answer 10

@iGreen.

Answer 11

When y is 60..x is both 1 and 5..I hope you can see that on the graph ._.

Answer 12

ohhhhhhhhhhhh i see it! ok. then what?

Answer 13

@iGreen.

Answer 14

Now for Part C:

We have to look at x = 3 and x = 5 and find the 'y' values..which is 120 and 60

(3, 120) (5, 60)

Plug them into the slope formula:

\(m = \dfrac{y_2-y_1}{x_2-x_1}\)

\(m = \dfrac{60-120}{5-3}\)

Simplify

Answer 15

@domisreallytall You okay?

Answer 16

sooo 60-120=-60

Answer 17

and 5-3=2

Answer 18

Yes, now divide -60 / 2

Answer 19

-60/2=-30

Answer 20

Yes, so the average rate of change from x = 3 to x = 5 is -30.

And it represents the average change between the price of pens when they're $3 and when they're $5.

Answer 21

I believe that's it! :)

Answer 22

THANK YOU! <3

Answer 23

No problem.