is either relationship proportional? explain reasoning

Question

The table shows the cost to rent a jet ski from two different stores for 0, 1, 2, and 3 hours.

 

Prices for Jet Ski Rental
Time (h)	Water Fun ($)	Super Ski ($)
0	0	20
1	25	35
2	50	50
3	75	65

 

Is either relationship proportional? Explain your reasoning.

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Instructions

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Answer 1

Water Fun is proportional

W = 25h

Super ski is not proportional

it's linear, but has a constant term

to be proportional it should be linear, but with zero constant term

S = 20+15h