The last option, y= -1/2x-2.
You need to solve for y.
Answer:
1:6 is the ratio, hope this helps
For this case we have the following functions:
![f (x) = 3x-1\\g (x) = x + 2](https://tex.z-dn.net/?f=f%20%28x%29%20%3D%203x-1%5C%5Cg%20%28x%29%20%3D%20x%20%2B%202)
We must find
. By definition we have to:
![(f + g) (x) = f (x) + g (x)](https://tex.z-dn.net/?f=%28f%20%2B%20g%29%20%28x%29%20%3D%20f%20%28x%29%20%2B%20g%20%28x%29)
So:
![(f + g) (x) = 3x-1 + (x + 2)\\(f + g) (x) = 3x-1 + x + 2](https://tex.z-dn.net/?f=%28f%20%2B%20g%29%20%28x%29%20%3D%203x-1%20%2B%20%28x%20%2B%202%29%5C%5C%28f%20%2B%20g%29%20%28x%29%20%3D%203x-1%20%2B%20x%20%2B%202)
We add similar terms:
![(f + g) (x) = 4x + 1](https://tex.z-dn.net/?f=%28f%20%2B%20g%29%20%28x%29%20%3D%204x%20%2B%201)
Answer:
![(f + g) (x) = 4x + 1](https://tex.z-dn.net/?f=%28f%20%2B%20g%29%20%28x%29%20%3D%204x%20%2B%201)
Option D
Here's a list that might help:
Odd functions: sinx, tanx, cotx, cscx
Even functions: cosx, secx