Question

If f(x)=x-1/3and g(x)=3x+1, what is (f o g)(x)?
3x + 1
x – 3
3x
x

Answer 1

(f o g) means f(g(x))
f(g(x)) means put g(x) for x in f(x)
f(g(x))=(3x+1)-1/3
simplified
f(g(x))=3x+2 and 2/3