Question

What is f(a+2)? Help

Answer 1

`((5+a))/((a-1))`

Choice A

Explanation:

`f\left(x\right)\:=\:(\left(3+x\right))/(\left(x-3\right))`

`x = a + 2`

Substitute x with a+2

Numerator becomes
`3 + (a+2) = 5+a`
Denominator becomes
`(a+2) - 3 = a+2-3 = a - 1`

Therefore the fraction becomes
`((5+a))/((a-1))`