Question 128234
(1-1)/(10-7)=0/3 THIS SLOPE = INFINITY OR IS A VERTICAL LINE THROUGH Y=-1.
{{{ graph( 300, 200, -6, 5, -10, 10, y = -1) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = -1).