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a direct variation function contains the points ( -8, -6 ) and (12,9 ) . Which equation represents the function ?

1 Answer

3 votes

Answer:

y =
(3)/(4) x

Explanation:

Given that the quantities vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use either of the 2 given points

Using (12, 9), that is x = 12 when y = 9, then

k =
(y)/(x) =
(9)/(12) =
(3)/(4)

y =
(3)/(4) x ← equation of variation

User Tasoula
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