Question

Bonnie buys a used car for $2500. She calculates her average monthly expenses for gas, insurance, and maintenance at $150 per month. The function f(x) = 150x + 2500 represents her total cost of owning the car for x number of months.

Answer 1

what is your question?

Answer 2

A.x>=0
B.y>=0
C.x>=2500
D.y>=2500

Answer 3

What is the range?

Answer 4

The range means the "possible values for the function f(x)"

Answer 5

Is it B?

Answer 6

So, right away, f(x) is sort of like y... both tell you some rule on how to get either f(x) or y if you know the x.

Range will be some statement about possible values for y.

Can your total cost be $0? Even before you start paying monthly costs, you had to spend $2500 for the car...

Answer 7

Im sorry. I meant to put C!

Answer 8

careful... range is a statement about output values... needs to be y or f(x), not x.

Answer 9

try again :)

Answer 10

D!!!(:

Answer 11

right :) C is trying to fool you :) Don't let it fool you!! :)

Answer 12

answers A and B are seeing if you remembered about the initial $2500 cost, but again, A cannot possibly be right, since it is using "x" to talk about range.

D is correct.

Answer 13

Thank you!