Question

Raina is a software saleswoman. Let y represent her total pay (in dollars). Let x represent the number of copies of English is Fun she sells. Suppose that x and y are related by the equation =+2100120xy.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 Raina's total pay for each copy of English is Fun she sells?$What is Raina's total pay if she doesn't sell any copies of English is Fun?$

Answer 1

Step-by-step explanation

Part A

Given that Raina's salary is model after

`2100+120x=y`

The change in Raina's total pay for each copy of English is Fun she sells refers to the slope of the equation which is the coefficient of x.

Answer: $120

Part B

Raina's total pay if she doesn't sell any copies of English is Fun occurs when x =9

`\begin{gathered} 2100+120(0)=y \\ y=2100 \end{gathered}`

Answer: $2100