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LUCKY_DIMON [66]
2 years ago
9

If y=-12, when x=9, find y when x=-4

Mathematics
1 answer:
tia_tia [17]2 years ago
6 0
2 different things
if it is
xy=k or if it is x/y=k
direct or inverse variation

I will do the x/y=k one
9/-12=-3/4
x=-4
-3/4=-4/y
mutiply both sides by y
-3/4y=-4
mutiply both sides by -4/3 to clear fraction
y=16/3




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