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.
even function :
f(-x) = f(x)
there is a reflection in the y-axis
f(-x) = -f(x)
there is a reflection in the origin.
test each equation with a few values of x