Answer:
If you take it in terms of integers,
9+3v may or may not be greater or equal to 6. It depends on the value of the variable you put in.
For eg:- if you substitute the value for v as 2 then 9+3x2=15 which is greater than 6 but if you put in -1 for v then you will get 9+3x(-1)=6
The slope intercept form might be: -2/3x+490
B) y = 5x + 15 and y = -5x + 15 I think.
I think it would be (D. 88)
~Hope This Helped~