1. Chapter 1: Lesson 1.1 Rectangular Coordinates
y-axis
Quadrant 2
Quadrant 1
x-axis
Origin
Quadrant 3
Quadrant 4
Rectangular Coordinate System Or
Cartesian Plane

2. Plotting Points on the Rectangular Plane Graph the points A(-1, 3)
B(2, -5)
C(2, 3)
D(-3, 4)
E(0, 0)
F(0, 4)
G(-4, 0)

3. Pythagorean Theorem Distance Formula
In a right triangle, the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse.
Distance Formula 3

4. Midpoint Formula
In a right triangle, the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse.