Khan Academy Static

Challenge_Distance_between_a_point_and_a_line

An optional tutorial where you'll figure out the minimum distance from a point to a given line.

Problem_solving_with_distance_on_the_coordinate_plane

Use what you know about distance to solve problems on the coordinate plan like finding the perimeter of a shape or determining if a point is on a circle.

Coordinate_plane_proofs

Prove properties of shapes by putting them on the coordinate plane and then using distances, midpoints, and slopes.

Dividing_line_segments

Think about ratios of lengths of segments between points.

Equations_of_parallel_and_perpendicular_lines

Learn all about equations of parallel and perpendicular

Distance_and_midpoints

Find the distance between two points or the midpoint of two points.

Equation_of_a_circle

You know that a circle can be viewed as the set of all points that whose distance from the center is equal to the radius. In this tutorial, we use this information and the Pythagorean Theorem to derive the equation of a circle.

Parallel_and_perpendicular_lines_on_the_coordinate_plane

You probably know what parallel and perpendicular lines are. In this tutorial, you will learn how these relationships are expressed on the coordinate plane (spoiler: parallel lines have the same slope, and the product of the slopes of perpendicular lines is always -1).