SOLUTION: Which of the following is not an equation of a simple, even polynomial function?(more than one can be selected.) y = | x | y = x^2 y = x^3 y = -x^2

Algebra ->  Rational-functions -> SOLUTION: Which of the following is not an equation of a simple, even polynomial function?(more than one can be selected.) y = | x | y = x^2 y = x^3 y = -x^2      Log On


   

Question 980717: Which of the following is not an equation of a simple, even polynomial function?(more than one can be selected.)
y = | x |
y = x^2
y = x^3
y = -x^2
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
y=x%5E3 is not even.

You would test this using comparison of x^3 to (-x)^3. These are not equal.


Try checking y=|x|.
Is this one even?
Try a graph?
-
graph%28200%2C200%2C-6%2C6%2C-6%2C6%2Cabs%28x%29%29
.
.
Yes, |x| is even.