A direct variation function contains the points (-8,-6) and (12,9) which equation represents the function

Mathematics

1 answer:

brilliants [131]3 years ago

7 0

Answer:

y = 0.75x

Step-by-step explanation:

Given y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k substitute either of the 2 points into the equation

Using (12, 9 ), then

k = $\frac{y}{x}$ = $\frac{9}{12}$ = 0.75, so

y = 0.75x ← equation of variation

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