a = 3 and y = 0
3 + 0 = 3
0
3 + -3
x squared -2x-3 equals 0 is the same as (x + 1)(x - 3) = 0
3 -3+3 equals 0
6z - 3 = 0
Zero
(0, -3)
6
Oh, dude, it's like so simple. 0 plus 3 equals 3. I mean, come on, even a potato could figure that one out.
(0, -3), (2, 0), (4 ,3)