Question

If f(x) = 3x+5 and g(x) = x-1, then f[g(0)]=?

Answer 1

hi @tomshave :)
can you first find g(0) ?
by plugging in x = 0 in g(x) ?

Answer 2

g=0, right?

Answer 3

no...
when we put x= 0 in g(x) we get
g(0) = 0-1

so ?

Answer 4

-1

Answer 5

oh 0-1

Answer 6

yes,
so g(0) = -1
so,
f(g(0)) = f(-1)
can you find f(-1) now ?
by plugging in x = -1 in f(x)

Answer 7

so f(-1)=3(-1)+5?
-3+5 = 2?

Answer 8

absolutely correct!
so, f[g(0)] = 2
got it ? any doubts ?

Answer 9

no, thank you very much.
first time user, you helped a lot:p

Answer 10

welcome ^_^
since you are new here,
\(\Huge \mathcal{\text{Welcome To OpenStudy}\ddot\smile} \)
if you have any doubts browsing this site, you can ask me.
Have fun learning with Open Study! :)

Answer 11

awesome, thanks.
have fun teaching with open study