Question

If f(x) = 2x + 3 and g(x) = x2 + 1,find f(g(3)).

Answer 1

direct answer or explanation?

Answer 2

both please :)

Answer 3

you would plug in 3 for x in the g(x) equation

Answer 4

i got 82?

Answer 5

therefore,
g(x)= x2+1
g(3) = (3)2+1
g(3)= 6+1
g(3) = 7

i believe that is correct

Answer 6

is 7 an answer choice

Answer 7

no that is incorrect

Answer 8

no, it's 23,47,82, and 90.

Answer 9

hmm
hold on

Answer 10

first plug 3 into the g equation

so

g(x)=3
g(3)=3^2+1
g(3)=9+1
g(x)=10

then plug that into the f(x) equation

so

f(x)=10
f(10)=2(10)+3
F(10)=20+3
f(g(x))=23

Answer 11

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Answer 12

right .. my bad

Answer 13

yes! that's what I just got tysm! :)

Answer 14

no problem