Mathematics
High School (11–12)
Coordinate Geometry › Straight LinesChapter 6Contains Standard contentStraight Lines
A road on a map, the edge of a ruler, the path of a ball seen from above: a straight line is the simplest curve, and algebra describes it completely with one equation. In this chapter you measure the slope and angle of lines, write their equation in every standard form, find the distance from a point to a line, and work with families of lines through a point. Python draws lines from their equations and checks every formula on hundreds of random cases.
Part of Mathematics · High School (11–12) (chapter 6)
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Slope and Equations of Straight Lines
The slope of a line and the angle it makes with the x-axis, the angle between two lines, parallel and perpendicular lines, and collinear points. Then the equation of a line in point-slope, two-point, slope-intercept and intercept forms.
General Form, Distances and Families of Lines
The general equation Ax + By + C = 0 and its normal form. The distance from a point to a line and between parallel lines, and which side of a line a point is on. Families of lines through an intersection, and the shift of origin.