Question

Let ​f(x)=3x-1 and ​g(x)=x squared+2. Find ​(f o ​g)(0​). Then ​(f o ​g)(0​)= ?

Answer 1

5

Explanation:

Evaluate g(0) then substitute the value obtained into f(x)

g(0) = 0² + 2 = 0 + 2 = 2, then

f(2) = 3(2) - 1 = 6 - 1 = 5

Answer 2

5.

Explanation:

To find (f o g)(x) we replace the x in f(x) by g(x):

(f o g)(x) = 3(x^2 + 2) - 1.

So (f o g)(0) = 3(0^2 + 2) - 1

= 6 - 1

= 5.