Answer
Please see the graph.
$y = 18x+75$
Independent variable represents bonus pay
Dependent variable represents hourly pay (based on how many hours worked)
Work Step by Step
18 per hour and a 75 bonus
$y = mx+b$
$y = 18x+75$
The independent variable is the bonus pay, as this is a flat amount not influenced by the number of hours worked.
The dependent variable is the hourly pay, as this is an amount that is influenced by the number of hours worked.