7 figures are placed in the coordinate plane Coordinate Prooffigures are placed in the coordinate planeuse algebra to proveSlope FormulaMidpoint FormulaDistance Formula
8 Example: Name the missing coordinates of each triangle.
9 Placing Figures in the Coordinate Plane Suggestions:Use the origin as a vertex.Place at least one side onan axis.Keep the figure in thefirst quadrant if possible.Use coordinates thatmake computations assimple as possible.
10 Example: Position and label each triangle on the coordinate plane. isosceles with base that is 2b units longequilateral with sides a units long
11 Coordinate ProofTami and Juan are hiking. Tami hikes 300 feet east of camp and thenhikes 500 feet north. Juan hikes 500 feet west of camp and then300 feet north.Prove that Juan, Tami, and the camp form a right triangle.
12 If a line segment joins the midpoint of two sides of a triangle, then it is parallel to the third side.