Question

Find the composition valueWhich of the four options is it?

Answer 1

`f(x)=2x-1`
`g(x)=x+4`

To find the value of:

`(g\circ f)(2)`

We calculated the value of g in function of (f(2)), as follow:

We need first find the value of the f(2):

`f(2)=2(2)-1=4-1=3`

Then we use this value to evaluate the g(f(2))

`(g\circ f)(2)=g\lbrack f(2)\rbrack`
`g(3)=(3)+4`

Then:

`(g\circ f)(2)=7`