Question

Maria is comparing the prices of two window cleaning companies. Company A charges $6 per window and an additional $12 as service charges. Company B charges $5 per window and an additional $15 as service charges.

Part A: Write equations to represent Company A and Company B's total charges for cleaning a certain number of windows. Define the variable used in the equations.

Part B: Which company would charge less for cleaning 8 windows? Justify your answer.

Part C: How much money is saved by using the services of Company B instead of Company A to clean 6 windows?

Answer 1

A: y=6x+12
B: y=5x+15

Answer 2

Variable cost is always the "slope" term, while fixed cost is always the "y-intercept" term

Answer 3

C?