The Coordinate PlaneChapter 2, Section 1Distance Formula in the Coordinate PlaneLet P = (x₁, y₁) and Q = (x₂, y₂) be any two points in the coordinate plane. Then the distancebetween P and Q, denoted d(P, Q), is given by the distance formulad(P,Q)=√(x₂−x₁)²+(y₂−y₁)²d(P,Q)=√(x₁−x₂)²+(y₁−y₂)²Example 1:a)Find the distance between the points(4√5,5)∧(−2√5,−9b)Find the distance between the points on the graph.)
Midpoint of a Line segmentThe midpoint is halfway between the two endpoints.Its x value is halfway between the two x values