1. Solving Systems of Three Equations
Algebra II with Trigonometry
Mrs. Stacey

2. Essential Stuff Essential Question Essential Vocabulary
How do you solve systems of three equations?
Essential Vocabulary
System of Equations
Substitution and Elimination

3. Coordinate Plane to 3D
The coordinate plane (with the x and y axis) is a two dimensional plane.
In other words, it is a flat surface.
Coordinate space is made up of the x and y axes and another axis called the z axis.

4. Ordered Triplets
Points in coordinate space with x, y, and z coordinates are called ordered triplets.
The point (1, 4, 7) means 1 on x axis, 4 along y axis, and 7 in third dimension (z axis).

5. Systems of Three Equations
Solution to a system of three equations is an ordered triplet.
We can use substitution or elimination to solve a system of three equations.

6. Homework
Homework 3.4: Solving Systems of Three Equations