Lesson Review:

There are 3 types of solutions when it comes to solving systems of equations. Either you will get:

• One solution (which will be given in an ordered pair) – the two lines cross each other in ONE place (this intersect is the solution). Different slopes.
• No solution – the two lines are parallel to each other and never cross. They have the same slope but different y-intercepts.
• Infinite solutions – the two lines are directly on top of each other (colinear). Since there are infinite points where the two lines cross, there are infinite solutions. They have the same slope and the same y-intercept.

Systems of equations can be solved by:

• Graphing Method
• Substitution Method
• Elimination Method
• Matrix Method / Cramer’s Rule (not discussed in this course)

Homework: Page 77-81, Ex 1-23

Additional Resources:

• https://www.mathwithdabit.com/in-class-lab-solving-systems.html
• https://www.youtube.com/watch?v=nok99JOhcjo

No School next week. Enjoy the holiday😊

« Prev：AoPS_CP Week 11: Geometric Probability AoPS_CP: Floor and Ceiling Functions：Next »