Find the slope of l using any two points on the line.
\Consider the points
on the line l.
The slope formula is
.
(Write the formula)
(Substitute
)
(Simplify)
Using point-slope form and either point on the line find the equation.
\Case 1:
\Use the point
.
The point- slope form is
.Where m = slope.
(Write the point-slope form)
(Substitute
,
)
(Simplify)
(Apply distributive property:
)
(Add 3 to each side)
Case 2:
\Use the point
.
The point- slope form is
.Where m = slope.
(Write the point-slope form)
(Substitute
,
)
(Simplify)
(Add 4 to each side)
The result is the same using either point.
The slope intercept form of the equation of the line is
.