Question

In the xv-plane, the line determined by the

points (2,k) and (k, 32) passes through the origin.
Which of the following could be the value of k ?

Answer 1

8

Explanation:

If the diagonal line passes through the origin, that means it is proportional. That means that for every point on the line y/x is constantly the same value. So we have k/2=32/k.

Cross multiply: k^2=64

Square root both sides: k=8