Question

What is the value of f[g(3)] for the functions f(x) = x + 2 and g(x) = 5x - 1? (Type only the value of your final answer, no variables.)

Numerical Answers Expected!

Answer 1

f(g(3)) first, find g(3) . after that, put the result tumber on the formula. like this >> f(result g(3)) do u understand?

Answer 2

not really.. can u help me work through this

Answer 3

ok.. first.. find g(3) with this formula g(x) = 5x - 1

Answer 4

soo what do i do now..

Answer 5

find the result of g(3) just subtitute the x on this formula >> g(x) = 5x - 1 with 3. what is the result u got?

Answer 6

so substitute with x with 3

Answer 7

yup.

Answer 8

g(3) = 5(3) - 1

Answer 9

yup..

Answer 10

so 14 is the answer ?

Answer 11

it's the answer for g(3).
now.. subtitute x with 14 to this formula f(x) = x + 2

Answer 12

14+2 = 16

Answer 13

so what now

Answer 14

it's the final result

Answer 15

so 16 is the answer not 14

Answer 16

can u please help me with a different question

Answer 17

http://openstudy.com/study#/updates/5060f00fe4b0583d5cd2892c

Answer 18

f[g(3)] is
f(g(3)) = g(3) + 2
1) to solve that first we must find g(3).
g(3) = 5(3) - 1
g(3) = 15 - 1 = 14
2) after that, we can find f(g(3)).
f(g(3)) = g(3) + 2
f(14) = 14 +2
f(14) = 16

do u understand?