Find the equation of a line given a point and a slope.
Point & Slope
Line Equations
Point-Slope Formy - 3 = 4(x - 2)
Slope-Intercept Formy = 4x - 5
Standard Form4x - y = 5
About this calculator
What is Point-Slope Form?
Point-slope form is a way to express the equation of a line. It is particularly useful when you know a point on the line and the steepness (slope) of the line.
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Pro Tips
m is the slope (rise over run).
(x₁, y₁) is any point on the line.
To convert to slope-intercept form (y = mx + b), distribute the m and move y₁ to the right side.
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Fun Facts
"The slope of a horizontal line is 0, and the slope of a vertical line is undefined."
