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lys-0071 [83]
4 years ago
13

If y =4when x= 10 find y when x=2

Mathematics
1 answer:
balu736 [363]4 years ago
8 0
<span>Since y=4, when x=-2, plug it into the formula above, and you have
y=kx
4=k(-2) 

Solve for k, k=-2 

</span><span>Now, y = -2x, so if x=30</span>y=-2*30=-60. 
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