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If the value of "y" varies directly with "X" and y = -8 when x = 20, find "y" if x = -4.
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4 votes
If the value of "y" varies directly with "X"
and y = -8 when x = 20, find "y" if x = -4.

User Heykarimoff
by
3.7k points

1 Answer

6 votes

Answer:

y=kx

-8=k20

-8/20=20k/20

k=-0.4

y=-4×-0.4

y=1.6

User Letronje
by
4.2k points
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