Question

Which is an equation of a direct proportion? A. =1/3−2 B. =3/ C. =−3+4 D. =−3

Answer 1

Answer:

D

Step-by-step explanation:

Answer 2

Answer:

D. y=-3x

Step-by-step explanation:

Direct Proportion

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

$\displaystyle \frac{y}{x}=k$

Where k is the constant of proportionality.

Solving for y:

y=kx

The only choice representing a direct proportion is:

D. y=-3x