Write the variation.
-r varies directly as the square of t.

Question

Quizplus · Accepted Answer

The variation r varies directly as the square of t means that r = kt^2, where k is a constant of proportionality. This is a direct variation because as t increases, r increases at the same rate. The correct variation is shown in choice B. The variation can be written as r = kt^2, where k is the constant of variation. As t increases, r will increase at a rate proportional to the square of t. Option B has a different value for the constant of variation k, which makes it a valid variation.

Write the Variation. -R Varies Directly as the Square of T