What is one characteristic of the cosine function? It is an odd function.
It has a period equal to π.
Its graph is symmetric about the y-axis.
Its domain is between –1 and 1 and is inclusive.

C. Its graph is symmetric about the y-axis

Step-by-step explanation:

I just took the pre-test

You can also graph the function and it is the same on both sides of the axis. For other questions like this I suggest: math-way

I was able to eliminate the first two answers using this website.

Its graph is symmetric about the y-axis

Step-by-step explanation:

true

step-by-step explanation:

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