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 )
(Product of two same signs is positive)
(Add: 2 + 1 = 3)
(Add: 1 + 2 = 3)
(Divide: )
Next find the y-intercept value by replacing m with 1, y with and x with in
the equation .
(Multiply: )
(Add 2 to each side)
(Simplify)
(Add: )
Replace m with 1 and b with 1 in the slope-intercept form line equation .
(Simplify)
The slope-intercept form line equation is .
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