Question

Jeff, an electrician, had a job that lasted 5.5 hours,during which time he earned $32 per hour and charged a $25 service fee. The function J(t) represents the amount Jeff earns in t hours

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Answer 1

• See below

Explanation:

This is a linear relationship:

• f(x) = mx + b

Rate per hour is the slope, service fee is the y-intercept:

• m = 32, b = 25

The equation is:

• J(t) = 32t + 25

The amount of charge per 5.5 hour job:

• J(5.5) = 32*5.5 + 25 = 201