Diane has rented a movie from Cine-Flix and is returning it late. The equation y = 2x + 4 represents the cost y (in dollars) of renting a movie after x days of late charges. Graph the equation and determine how much it will cost Diane after 3 days of late charges.

Question

Mathematics

Caitlin Sweeney

13 February, 10:55

Diane has rented a movie from Cine-Flix and is returning it late. The equation y = 2x + 4 represents the cost y (in dollars) of renting a movie after x days of late charges. Graph the equation and determine how much it will cost Diane after 3 days of late charges.

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Answers (1)

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Damaris Henry · Answer 1

Y = 2x + 4

x : days of late charges

y : cost

So you would have to substitute 3 into x because Diane is 3 days late.

y = 2x + 4

y = 2 (3) + 4

y = 6 + 4

y = 10

It would cost $10.