If y varies inversely as x, and y=14 when x=3, find y when x=10.

Question

simplify for y=

Answer 1

Hi Tanner.

 

We begin with

y = k/x

 

Evaluate with y=14 and x=3 to find the constant, k.

14 = k/3

k = 42

 

This gives us

y = 42/x

 

When x=10

y = 42/10 = 4.2