Question

What is the constant of variation, k, of the line y=kx through (3,18) and (5,30)?

Answer 1

6

Explanation:

In this instance, the constant of variation is the same as the slope. The formula for slope is:

`m=(y_2-y_1)/(x_2-x_1)`

Using the points we're given, we have

`m=(30-18)/(5-3)=(12)/(2)=6`

The constant of variation is 6.

Answer 2

sub in one of the points, doesn’t matter which one because they will give the same answer.
(3,18)
18=3k
k=6
hope this helps :))