when
stated in "y=" form, it
quickly gives the slope, m, and where the
line crosses the y-axis, b, called the y-intercept. |
when
graphing,
put this equation into "y = " form to easily read graphing
information. |
y = 3
(or
any number)
horizontal lines
have a slope of zero - they have "run", but no
"rise" -- all of the y values are 3. |
x = -2 (or
any number)
vertical lines have no slope
(it does not exist) - they have "rise", but no
"run" --all of the x values are -2. |