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# Suppose that is inversely proportional to . If when , find ​when .

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Suppose that $$\alpha$$ is inversely proportional to $$\beta$$ . If $$\alpha = 4$$ when $$\beta=9$$ , find $$\alpha$$when,$$\beta=-72$$

tertre  Dec 3, 2017
edited by tertre  Dec 3, 2017
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#1
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A  = k/ B

4  = k / 9

k  =  36

A  =  36 /  -72   =    -  1/2

CPhill  Dec 3, 2017

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