Question

Some equations have the form y=kx, where k is a number.

Which equation CANNOT be written in the form y=kx?

y=x

y=x+3

y/2=x

y= ‐1/10x

Answer 1

y=x+3

Explanation:

The equation "y=x+3" cannot be written in the form y=kx because the form doesn't use addition as a basic operation. Let's try verifying the choices:

y=x is possible if the value of k is 1, provided that both y and x are of the same value.

y/2=x is possible because y=2x, provided that 2 is the value of k.

y=-1/10x is possible because -1/10 is the value of k. This is just the same with y=kx.