Question

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

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

Answer 1

C. y = x - 7

Explanation:

Answer 2

Hello from MrBillDoesMath!

Answer:

y = x - 7

Discussion:

Let's step through the answers one-by-one:

y/6 = x => multiply both sides by 6

y = 6x

y = kx where k = 6

y/x = 1/2 => multiply both sides by x

y = (1/2) x

y = kx where k = 1/2

y = -0.5x

y = kx where k = -0.5

BUT y = x -7 cannot be written simply as y = kx because of the -7 term.

Thank you,

MrB