preparatory math

Question

Goran is a software salesman. Let y

 represent his total pay (in dollars). Let x

 represent the number of copies of Math is Fun he sells. Suppose that x

 and y

 are related by the equation =y+1900110x

.

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 Goran's total pay for each copy of Math is Fun he sells?

$

What is Goran's total pay if he doesn't sell any copies of Math is Fun?

Answer 1

Hello, Chasity,

As already noted, there seems to be a problem with the equation, as entered.

=y+1900110x is meaningless.

If we instead write: y = 1900110x; it is now an equation, but the 1900110 would have to be interpreted as Goran earns $1,900,110 for each book he sells. While I agree selling math books can be a challenge, I don't believe any salesman will earn over a million $ for each book they sell.

Check the equation and interpret it as follows. For illustration, let's say the equation is actually:

y = 3.50x

Then the answers to the questions would be:

1) His change in pay is $3.50 for every additional book sold.

2) His pay is $0 if he sells no books