Question

Help me understand this por favor!

Answer 1

Might help: http://www.math.fsu.edu/~kutter/evenodd.pdf

Answer 2

\[f(x)=\frac{ \left| x \right| }{ x^2+a },f(-x)=\frac{ \left| -x \right| }{ (-x)^2+a }=\frac{ \left| x \right| }{ x^2+a }=f(x)\]
f(x) is even'
if f(-x)=-f(x),then f(x) is odd.

Answer 3

thank you so much! @sshayer

Answer 4

so for the next one would it be: -x(-x^4 +7) and then when you distribute you get x^2 +7 which is even?

Answer 5

@sshayer

Answer 6

\[f(-x)=-x \left\{ \left( -x \right)^4+7 \right\}=-x(x^4+7)=-f(x)\]

Answer 7

which is odd.

Answer 8

@jim_thompson5910

Answer 9

I'm really confused

Answer 10

which part are you on @pflori1234_pop ?

Answer 11

the second one

Answer 12

@jim_thompson5910

Answer 13

ok one moment

Answer 14

what did you get for `g(-x)` ?

Answer 15

even

Answer 16

@jim_thompson5910

Answer 17

what expression did you get?

Answer 18

-0