Question

Rita is a software saleswoman. Let represent her total pay (in dollars). Let represent the number of copies of History is Fun she sells. Suppose that and are related by the equation 70x+1600=y. Answer the questions below. Note that a change can be an increase or a decrease. For an increase, use a positive number. For a decrease, use a negative number. What is the change in Rita's total pay for each copy of History is Fun she sells? What is Rita's total pay if she doesn't sell any copies of History is Fun?

Answer 1

70 dollars

1600 dollars

Explanation:

The equation is

`y=70x+1600`

where

y = Total pay

x = Number of of copies of History is Fun sold

Cost of History is Fun is 70

Rita's fixed pay is 1600

The change in Rita's total pay for each copy of History is Fun sold she earns 70 dollars.

If she sells zero copies of History is Fun then x = 0

`y=70* 0+1600\\\Rightarrow y=1600`

So, her total pay would be 1600 dollars.