Graphing Slopes
If you are given the coordinate pair for points on a line, and the slope of that
line, you can draw the line on a coordinate graph. First, graph the coordinate
pair on an axis. Next, starting at that point, plot a second point by following
the “map” of the slope: move up or down according the to value of the numer-
ator, and then move left or right according to the value of the denominator.
Connect these points to graph the line. If the slope is negative, only oneof your
movements will be negative, not both. For example: line hhas a slope of – 33 and
the coordinate pair (5,1) is on line h. Starting at (5,1), move three spaces down,
and three spaces to the right and plot a second point at (8,–2).
(8,–2)(–3)(5,1)x-axisy
=- x
3y-axis501 Geometry Questions