Question

When $x$ and $y$ are related by an equation $y=mx$, where $m$ is a constant, then $x$ and $y$ are in a ______ relationship.

• A. non linear
• B. quadratic
• C. Proportional
• D. non proportional

Answer 1

The correct option is C Proportional

$y=mx$
$\frac{y}{x}=m$
Since $\frac{y}{x}$ is a constant, we can say $x$ and $y$ are proportional and m is called the constant of proportionality