Recognize that your equation is already written in
"slope-intercept" form (y=mx+b). This form is helpful
in calculating values for "y" using several values for "x".
y=(3/4)x-1......original equation, given
m=3/4............value for slope "m"
(0,-1)...............y-intercept (0,b)
Let's set up a table for "x and y" and calculate several
values. Plug in the values of "x" into the equation and
calculate the corresponding "y" values...
x y
------------
-8 -7
-2 -2.5
-1 -1.75
0 -1
1 -0.25
1.33 0
2 0
8 5
Now plot these on a coordinate grid and connect
the points. Your resulting graph should be a straight
line with increasing slope (m=3/4) from left to right
with a y-intercept of (0,1) and an x-intercept of (1.33,0).
