Question

A cell phone package charges $39 even if 0 minutes are used during the month.Each additional minute of talk time adds a $0.07.Write an equation to model this situation in slope-intercept form.

Answer 1

Total monthly cost (x) = $39 + ($0.07/min)x

Explanation:

The y-intercept is $39. The slope is ($0.07/minute)x, where x is the number of talk minutes. Thus:

Total monthly cost (x) = $39 + ($0.07/min)x, where x is the number of talk minutes.