Determine whether the equation represents direct, inverse, joint, or combined variation.
-$y=8 x^{2}$
A) Joint
B) Direct
C) Combined
D) Inverse

Question

Quizplus · Accepted Answer

The equation $y = 8x^2$ represents direct variation because $y$ varies directly with the square of $x$. In direct variation, as $x$ increases, $y$ increases proportionally, and the equation is of the form $y = kx^n$, where $k$ is a constant and $n$ is a power.

Determine Whether the Equation Represents Direct, Inverse, Joint, or Combined y=8x2y=8 x^{2}y=8x2

Determine Whether the Equation Represents Direct, Inverse, Joint, or Combined $y=8 x^{2}$