Suppose that y varies inversely with x and y 3 when x 8 Wr

Suppose that y varies inversely with x, and y = 3 when x = 8. Write an inverse variation equation that relates x and y. Equation: Find y when x = 4. y =

Solution

y varies inversely with x

then equation would be

y = k/x

where k is proportionality constant

y=3 , x=8

3 = k/8

k = 24

now finding y when x = 4

y = 24/4 = 6

y = 6