Question

An electrician charges $85 for a house call and $30 per hour for his services. Which of the following is a linear model of his charges.

A- y=30x+85
B- y=85+30
C- y=2.8+85
D-y= 85 to the power of 2.8

Answer 1

a

Explanation:

$85 is constant

$30 will be added to the cost every X hours