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Amy can choose plan a or plan b for her long distance charges.

Amy can choose plan a or plan b for her long distance charges.-example-1
User Shaun Shia
by
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1 Answer

6 votes

Step 1: Concept

To find which plan that cost more, you will trace the time at from the horizontal axis to the point where its intercept the lines.

Step 2:

a) For 20 minutes of long-distance calls for a month

Plan A cost $2

Plan B cost $8

Plan B cost $6 more than plan A

Step 3:

b)

Plan A and plan B cost the same amount for a long-distance call of

140 minutes

Plan B cost less

User Lemonina
by
8.3k points

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