Question

Lisa is a software saleswoman. Let y represent her total pay (in dollars). Let “x”represent the number of copies of History is Fun she sells. Suppose that “x”and “y”are related by the equation 90x + 2200 =v.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.-Picture includes the questions-

Answer 1

Step-by-step explanation

Part A

Given that x and y are related by the by the equation 90x + 2200 =y. We can find the change by comparing the formula with the original equation of a line.

`\begin{gathered} y=mx+c \\ where\text{ m is the slope\lparen change in y for x\rparen} \end{gathered}`

Comparing the above with the given question, m becomes change in Lisa's pay for each copy of history is fun. Therefore,

Answer: 90 dollars

Part B

If Lisa does not sell any copies of history is fun, therefore, the value of x becomes zero. We can then have the total pay as

`\begin{gathered} y=90(0)+2200 \\ y=2200 \end{gathered}`

Answer: 2200 dollars