Question

Assume y varies inversely with x. If y=9 when x=8​, find the value of y when x=32

When x=32​, y=___
(Type an integer or a​ decimal)

Answer 1

For inverse variation, y = k/x
From the given, 9 = k/8
k = 9 * 8 = 72
Thus, y = 72/x

Therefore, when x = 32, y = 72/32 = 2.25
y = 2.25