When x = 2, y = 50 and when x = 4, y = 100. Which direct variation equation can be used to model this function? xy = 100 xy = 400 y = 25x y = 100x

asked Jan 4, 2018 225k views

1 vote

When x = 2, y = 50 and when x = 4, y = 100. Which direct variation equation can be used to model this function?

xy = 100
xy = 400
y = 25x
y = 100x

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2 votes

y=25x because if you were plug in the x for both equations:

y=25 (2)
y=50

y=25 (4)
y=100

It would be the same value as y.

Nagarajan answered Jan 6, 2018

7.1k points

1 vote

The answer is y=25x

bc 25x2=50 and 25x4=100

Hiroe answered Jan 11, 2018

by Hiroe

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