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

6

Step-by-step explanation:

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

Using the points we're given, we have

The constant of variation is 6.

1.0

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.