Question

How do you determine if `y=3x²+5` is an even or odd function?

Answer 1

`"the function "y =3x^2+5" is even."`

Explanation:

`f(x)=y=3x^2+5`

`if f(-x)=f(x)" then function is even"`
`if f(-x)=-f(x)" then function is odd"`

`"so ; "f(-x)=3(-x)^2+5=3x^2+5=f(x)`

`"the function "y =3x^2+5" is even."`