Question

Is this function even or odd or neither?
f(x) = -9x^4 + 5x + 3

Answer 1

\[f(-x)=f(x)\] even
\[f(-x)=-f(x)\]
odd

Answer 2

so f(-x) = -9(-x)^4 +5(-x) +3

do i follow?

Answer 3

yes

Answer 4

\[=-9x^4-5x+3\]
x^4 is even

Answer 5

\[x,x^3,x^5,x^7...\]odd
\[x^2,x^4,x^6...\]even

Answer 6

So the function is therefore neither??

Answer 7

oh and thanks, those help, I will write them down

Answer 8

but th rules also work i c=dont know why its not the same thou maybe cos we are adding an odd + even=odd

Answer 9

so its none

Answer 10

none of them

Answer 11

neither

Answer 12

thank you!