A company finds that if it Charges x dollars for a cell phone, it can expect to cell 1,000-2x phones. The company uses the function r defined by r(x) = x (1000 - 2x) to model the expected revenue, in dollars, from selling cell phones at xdollars each. Use graphing technology to graph the function r. What do the x intercept means in this situation? Is 0 < x < 600 an appropriate domain for the function r? At what price should the company sell their phones to get the maximum revenue? Explain your reasoning.​

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yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!