Suppose that y varies inversely with x, and y=9/8 when x=16..

Question

(a) Write an inverse equation that relates x and y

(b) Find y when x = 6

Answer 1

y=k/x

9/8 = k/(16)

k = (9/8)16 = 18

y = 18/x

when x =6

y = 18/6

y = 3