Question

What is the value of f[g(3)] for the functions f(x) = x + 3 and g(x) = 2x + 1?

Answer 1

Can you find
\[g(3)\]?

Answer 2

I dont know how to do this,so i wouldnt no

Answer 3

To find g(3)
you look at g(x)=2x+1
and where there is x you replace the x with 3 and evaluate
so try replacing the x in g with 3 and apply the order of operations

Answer 4

Let me know what you get when you do this and I will be happy to check

Answer 5

g= 7

Answer 6

yes g(3)=7

Answer 7

great! :)

Answer 8

ok by we wanted to find f(g(3))

Answer 9

But we just found g(3)=7
so we have f(7)

Answer 10

so then we do 7 +3?

Answer 11

yes that is totally correct! Great job! :)

Answer 12

so then the answer would be 10?

Answer 13

yes

Answer 14

thank you!

Answer 15

You did a great job. Have fun!