<PRE><B>Question 203469</B>
(-2,0) and (-2,-2).
First we find the slope.
Slope=(y2-y1)/(x2-x1)
Slope=(-2-0)/(-2+2)
Slope=-2/0 
slope=0
The equation is:
y=mx+b
0=0*-2+b
0=0+b
0=b is the y intercept.
y=0x+0
y=0
{{{ graph( 300, 200, -6, 5, -10, 10, y =0) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y =0). 
This line is a verticle line through y=0.
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