Question

Which equation is a direct variation?

y=3/4x+5 y=4x-1 y=3(x+2) y=3/5x

Answer 1

Since the equation can be written in the form

y

=

k

x

,

y

varies directly with

x

and

k

. The constant of variation,

k

, is

3

4

.

3

4

Explanation: