Asked by Adlyn

Suppose y varies directly with x. If y = 6 when x = -2, find x when y = 15.
a. ⅕
b. 5
c. -5
d. -⅕
Answered by Damon
y = k x
6 = k (-2)
k = -3
15 = -3 x
x = -15/3
x = -5
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