Austin is a software salesman. Let y represent his total pay (in dollars). Let x represent the number of copies of English is Fun he sells. Suppose that x and y are related by the equation =+250080xy. 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 Austin's total pay for each copy of English is Fun he sells?
$
What is Austin's total pay if he doesn't sell any copies of English is Fun?
$