MATH
posted by Taylor on .
Which function Is even?
a. f(x) = √x  3
b.f(x) = 3√x
c. f(x) = x + 4
I keep getting neither even or odd.
HELP PLEASE...

even function :
f(x) = f(x)
or
there is a reflection in the yaxis
odd function:
f(x) = f(x)
or
there is a reflection in the origin.
test each equation with a few values of x