Solve the problem.
-Using a phone card to make a long distance call costs a flat fee of $0.65 plus $0.13 per minute starting withthe first minute. What is an equation of the form y = ax + b for this situation?
A)y = 0.13x + 0.65
B)y = 0.65x + 0.13
C)y = 0.65x
D)y = 0.13x

Question

Quizplus · Accepted Answer

The equation y = 0.13x + 0.65 represents the flat fee of $0.65 plus the variable cost of $0.13 per minute multiplied by the number of minutes x. The equation of the form y = ax + b represents a linear equation where a is the slope and b is the y-intercept. In this problem, the slope is $0.13 per minute and the y-intercept is the flat fee of $0.65. Therefore, the equation in the form y = ax + b is y = 0.13x + 0.65.

Solve the Problem. -Using a Phone Card to Make a Long Distance Call