Which of the following relations is a function? A. (-5, 2), (-4, 3), (4, 7), (6, 2) B. (-4, -2), (-5, -5), (4, 8), (4, 2) C. (-5, 0), (-4, 5), (-5, -3), (4, 9)

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

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right