How do you find the compositions given f(x)=8x-1 and g(x)=x/2?
2 Answers
Jan 7, 2016
Explanation:
You can think:
a)
b)
Remember that:
Jan 7, 2016
Substitute the expression for
Similarly find:
Explanation:
(f@g)(x) = f(g(x)) = f(x/2) = 8(x/2)-1 = 4x-1
(g@f)(x) = g(f(x)) = g(8x-1) = ((8x-1))/2 = 4x-1/2