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Suppose y varies directly as x Write a direct variation
equation that relates x and y. Then solve.

if y=15 when x=2, find y when x=8

Respuesta :

s1m1

Answer:

y=7.5x, y=60

Step-by-step explanation:

you have to consider x as the input and y as output

when input  x=2 the output  y=15  so it grew by 7.5 so we can say that y= 2*7.5

in general the equation is y= 7.5*x

when x=8 we will have y=7.5*8=60

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