If the value of "y" Varies directly with "x" and y = -8 when x = 20, find "y" if x = -4.
1 answer:
Answer:
Step-by-step explanation:
When y varies directly with x
y=kx x=20 y=-8
k=y/x
k=-8/20
k=-0.4
now when x=-4 find y
y=kx
y=-0.4*-4
y=1.6
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