Answer :
Given: f(x) = x + 1 and g(x) = x²−3
1. Solve for f(3)
Let f(x) = f(3).
Substitute 3 for x
f(3) = 3 + 1
= 4
Therefore f(3) = 4
Solve for gf(3)
Substitute f(3) into g(x).
f(3) = 4
gf(3) = 4² − 3
= 13
Therefore gf(3) = 13
1. Solve for f(3)
Let f(x) = f(3).
Substitute 3 for x
f(3) = 3 + 1
= 4
Therefore f(3) = 4
Solve for gf(3)
Substitute f(3) into g(x).
f(3) = 4
gf(3) = 4² − 3
= 13
Therefore gf(3) = 13