Question

Latoya is a software saleswoman. Let represent her total pay (in dollars). Let represent the number of copies of English is Fun she sells. Suppose that and are related by the equation . 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 Latoya's total pay for each copy of English is Fun she sells

Answer 1

The answer is "$80".

Explanation:

Please see the attached file for the whole question.

Yolanda's total pay y changes for each 'English is fun' sold x, i.e.

`(\delta y)/(\delta x) = (dy)/(dx) \\\\y = 1900+80 x`

separating the above equation:

`(dy)/(dx)= 80`

Therefore,

`(dy)/(dx) = \$80`

For each 'English is enjoyable' sold x, the change in Yolanda total compensation y is
`\$80`.