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3 years ago

10

Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y

when x = –2?

2 answers:

alexandr1967 [171]3 years ago

7 0

Y = kx

(i) 8 = k(-6)
k = -4/3
=> equation ： y=(-4/3)x

(ii) y = (-4/3)(-2)
y= 8/3

Fantom [35]3 years ago

6 0

Y=12 given -6+4=-2 just add 4 to x

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