
The line equation in slope-intercept form is
, where m is the slope
and b is the y-intercept.
\First find the slope of the line.
\
(Substitute 0 for x1, –1 for y1, 2 for x2 and 3 for y2)
(Simplify)
(Add:
)
(Divide:
)
Next find the y-intercept.
\The line crosses the y-axis at (0, – 1).
\So, the y-intercept is –1.
Replace m with 2 and b with –1 in the equation
.

(Simplify)
The slope-intercept form line equation is
.