Question

Bridget Mayer is getting ready to open a small restaurant. She is on a tight budget and must choose between the following long-distance phone plans: Plan A: Pay 10 cents per minute of long-distance calling. Plan B: Pay a fixed monthly fee of $14 for up to 340 long-distance minutes and 8 cents per minute thereafter (if she uses fewer than 340 minutes in any month, she still pays $14 for the month). Plan C: Pay a fixed monthly fee of $23 for up to 440 long-distance minutes and 6 cents per minute thereafter (if she uses fewer than 440 minutes, she still pays $23 for the month). Read the requirements. Requirement 1. Match the graphs to the total monthly costs of the three plans for different levels of monthly long-distance calling. Before we match the graphs to the plans, complete the following table, calculating the total costs for each plan at each of the different minute levels. (Round to the nearest cent.) 340 minutes Plan 100 minutes 540 minutes 48 10.00 28 14.00 $ 28 14.00 B 24 24 26.40

Answer 1

	Minutes
Plan	100	340	540
A	10	34	54
B	14	14	30
C	23	23	29

340 A B C D Minutes 2 Plan 100 540 3 A =B2*10/100 =C2*10/100 =D2*10/100 4 B 14 =14+(D2-C2)*0.08 5c 23 =23+(D2-440)*0.06 14