Question

The variable Z is inversely proportional to X. When X is 6, Z has the value 2.

What is the value of Z when X = 13

Answer 1

Inverse proportion is of the form:

y=k/x, in this case the variables are

z=k/x, and we are given the point (6,2) so we can solve for k

2=k/6

12=k, so our equation is:

z=12/x, so when x=13

z=12/13