Let f(x) = 5x – 26 and g(x) = 6x.

Part 1 What is (f ◦ g)(x) ?
Part 2 Use complete sentences to describe the method you used to solve this problem.

Question

Let f(x) = 5x – 26 and g(x) = 6x.

Part 1 What is (f ◦ g)(x) ? 
Part 2 Use complete sentences to describe the method you used to solve this problem.

jamesj · Answer

By definition, (f ◦ g)(x) = f(g(x))

Now f(g(x)) = 5g(x) - 26, by definition of f(x), f(x) = 5x - 26

You complete it now by using the definition of g(x)

jamesj · Answer

That is
f(g(x)) = 5g(x) - 26
          = ... what?

anonymous · Answer

wouldn't you make it 5/x-26??

jamesj · Answer

No.  f(x) = 5x - 26
hence, f(g(x)) = 5g(x) - 26

Now g(x) = 6x

Hence 
f(g(x)) = 5g(x) - 26 
          = 5(6x) - 26, by definition of g(x)
          = ... what?

anonymous · Answer

16

anonymous · Answer

sorry sorry 4 read it wrong