Quick timed does anyone know this algebra 2 question? will give brainiest

I think it is the third one

It is the third one because of two things:

1. The negative in front of the function.

2. The +8 at the end.

The third one is the only one that matches with the original function.

Step-by-step explanation:

The slope:    

y = mx + b    ←  slope intercept form

(8, 8)   ⇒   x = 8,  y = 8

so:

8 = 2·8 + b

b = - 8

The equation: y = 2x - 8