Graph 3x−y=1 by using the slope and y-intercept.
y-intercept:
3x−y=1Given equation3(0)−y=1To find the y-intercept, let x=0−y=1Simplifyy=−1
The y-intercept is (0,−1)
m=change in ychange in xm=31
Beginning at the y-intercept, move to the right 1 unit and then up 3 units.
(1,2) are the coordinates of a second point on the graph.
Draw a line through (0,−1) and (1,2)
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