Equation of a line
Equation of a line
To find the equation of a line, you
need two pieces of information:


The SLOPE


The y-intercept
Slope....how steep the line is

y-intercept....where it crosses the y axis
Write the equation in this order:
y = mx + b

m=slope
b=y-intercept
So...if the slope is 5
and the y intercept is
6, the equation is:
y = 5x + 6
slope
=5/1 = 5
y=5x+6
1
5
6
y int.
y=2x-3
-3
1
2
2
-2
4
-4
2
-2
4
-4
6
-6
y=-2x+3
3
-2
1
Now it's time for
you to try.  I've turned
on the right/wrong
counter at the top right
so you can see if you
are correct.
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