Find slope,if the line is defined state this.
(0,2)(4,-3)(5,-7)(-2,5)(-4,6)
The slope between any two points on a
st. line are equal:
(0,2),(4,-3).
m = (-3-2) / (4-0) = (-3/4) = 0.75.
(0,2), (5,-7).
m = (7-2) / (5-0) = 5/5 = 1.
The slope changed; therefore the given
points does not represent a st. line.