Identify the function in which y varies directly with x.

y = 2x – 2

y = x

y = 0x

y = 2x + 2

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

believe it or not anna is correct good job anna give me a fist bump there u go gal