04:13 duration 4 minutes 13 seconds
Classifying systems of linear equations from…
Classifying systems of linear equations from graphs
Looks at the three types of graphs that can occur with a system of two linear equaltions in two variables.
05:42 duration 5 minutes 42 seconds
Identifying solutions to a system of linear…
Identifying solutions to a system of linear equations
This demonstrates testing possible answers to a system of two equations to see whether they are truly answers or not. Note that each answer has to work for both equations, but if it doesn't…
06:03 duration 6 minutes 3 seconds
Solving Problems About Distance, Rate, and Time
Describes how to solve a distance problem where the times of two different trips are the same.