2.4 Lines. Slope Find the slope of the line passing through the given points.
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Transcript of 2.4 Lines. Slope Find the slope of the line passing through the given points.
2.4 Lines
Slope
Find the slope of the line passing through the given points.
Slope
(+) Slope
(-) Slope
Zero Slope
No Slope
Graphing Linear Equations
Graph a line given a point and the slope
General Form
• X and Y must be on the same side
• A and B may not contain any fractions
• A must always be positive
Point slope
Find the equation of a line in general form given a point and a
slope.
Find the equation of a line in general form given two points.
Point slope
Slope – Intercept
Find the slope and y-intercept of each equation and graph.
2.5 Parallel and Perpendicular
Lines
Parallel LinesTwo non-vertical lines are parallel if and only if their slopes are equal and they
have different y-intercepts.
Two non-vertical lines are perpendicular if and only
if the product of their slopes is – 1.
Perpendicular Lines
Determine if the lines are parallel, perpendicular, or
neither.
