The line equation in slope-intercept form is , where m is the slope and b is the y-intercept.
First find the y-intercept value.
\ (Substitute
for m)
(Substitute 1, 3 for x, y)
(Multiply:
)
(Add
to each side)
(Apply Commutative property:
)
(Apply Additive inverse property:
)
(Apply Additive identity property:
)
(Add:
)
Substitute for m and
for b in the Slope-intercept form line equation.
The line equation in slope-intercept form is .