Question

The proportional relationship between the cost and duration of a phone call is shown in the following

Which statement about the graph are true

Answer 1

None of the above

Explanation:

the x coordinate tells us the duration, and the y-coordinate tells us the total cost of a phone call. The y coordinate of point aA represents the total cost of an 8 minutes phone call. not 8 phone calls. point a tells us that the cost is $2 for an 8-minute phone call, so the cost per minute is 2/8=$0.25, not $0.3.

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