Question

Which equation represents a direct linear variation?

Responses

y=13x
y = 1 3 x

y=x−3
y = x − 3 ,

y=1x
y = 1 x

y = x2

y = x 2

Answer 1

Answer: y = 13x and y = 1x

Explanation:

A direct linear variation equation is in the form y = mx, where the y-intercept is equal to 0 and m is the slope.

Here, the answer options that satisfy this are y = 13x and y = 1x.

y = x - 3 has a y-intercept besides 0, and y = x² is not a linear equation.