Question

Passengers on many commercial flights may make calls from a telephone provided

by the airline. On a certain airline, a call costs $3 to connect plus $2 for each
minute. Which linear equation best represents c, the total cost for a call that lasts m
minutes?

Answer 1

c = 3 + 2m

Explanation:

Let c = total cost of call (in dollars)

Let m = number of minutes

Given:

• Connection fee = $3
• Cost per minute = $2

⇒ c = 3 + 2m