-x^2+6x+3
hope this helps :)
5x-4-x=4(x+1)
5x-4-x=4(x)+4(1)
(5x-x)-4=4x+4
4x-4=4x+4
+4 +4
4x=4x+8
/4 /4
x = x+2
-x -x
0=2
Since the two points have the same x value, this means the it is a vertical line. Vertical lines do not have a slope. This means that the answer is undefined