472,106 views
43 votes
43 votes
If f(x) = x+1 and g(x) =x^2, then gf(2) =

User Evan Kaminsky
by
2.8k points

2 Answers

28 votes
28 votes

Answer:

9

Explanation:

f(x)=x+1........(i)

g(x)= x^2......( ii ).

gf(2)........(III)

substitute f( 2) to ......(I)

f(2)=2+1

f(2)=3

gx=gf(2)

gf(2)= 3^2

=9

User Roman Podymov
by
2.9k points
7 votes
7 votes

Answer:

g(f(2)) = 9

Explanation:

Evaluate f(2) and substitute the value obtained into g(x)

f(2) = 2 + 1 = 3 , then

g(3) = 3² = 9

User Yetsun
by
2.6k points