Algebra I Recipe: Writing Equations in y = mx + b when Given the Slope and a Point on the Line
By G Redden
Steps
- Use point-slope form: y - k = m(x - h)
- Substitute the slope in place of "m."
- Substitue the x-coordinate of the ordered pair for "h."
- Substitute the y-corrdinate of the ordered pair for "k."
- Distribute the slope value.
- Add or substract "k" on both sides to isolate "y" and get y = mx + b.
(2, 3) m = -1/2
(-3, 4) m = 2/3
(2, -3) m = 2
(1, -3) m = -4
(-2, 4) m = 0
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