Question

Which is an equation of a direct proportion

Answer 1

Answer:

The equation of a direct proportion is: y=8x

So, the correct option is Option A.

Step-by-step explanation:

We need to find equation of direct proportion.

If y varies directly with x then:

$y\:\alpha \:x\\y=kx$

Where k is constant of proportionality

So, Now Looking at all the options and comparing it with the general equation of direct proportion $y=kx$

We get the correct option: y=8x

All other options are not according to direct equation

The equation of a direct proportion is: y=8x

So, the correct option is Option A.