The slope-intercept form:

m - slope
b - y-intercept
The formula of a slope:

We have two points (2, 0) and (-2, -4). Substitute:

Therefore we have the equation of a line

Put the coordinates of the point (2, 0) to the equation:
<em>subtract 2 from both sides</em>

Answer: 
First write the factors of 9:
9, 18, 27, 36, 45
Then look for ones that are greater than 20:
27, 36, 45
Hope this helps :)
I think it is a yes. But sorry if I am wrong, ok. =(