Assume that y varies directly with x. If y = -15 when x = -5, find y when x = 3.
1 answer:
Answer: Y = 9
Step-by-step explanation:
Y & X
Y = KX
K = Y / X = - 15 / - 5 = 3
X = 3
K= 3
Y=?
Y = KX = 3 x 3 = 9
Therefore, when X = 3, Y = 9
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