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

which equation cannot be written in the form y=kx?

Hello from MrBillDoesMath!

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

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation: