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14-10-2021
Mathematics

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y varies inversely with x. If y = -8 when x = -7, find the y when x=-4.

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wegnerkolmp2741o wegnerkolmp2741o

14-10-2021

Answer:

y =-14

Step-by-step explanation:

Inverse variation is of the form

xy = k where k is a constant

(-7)(-8) = k

56 = k

The equation is

xy = 56

Let x = -4

(-4)y = 56

y = 56/-4

y =-14

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