Sophia Learning
Sophia: Solving Linear System by Graphing
This video tutorial demonstrates how to solve a linear system of equations by graphing. The lesson includes detailed examples.
Sophia Learning
Sophia: Slope in Perpendicular Lines: Lesson 6
The relationship between slopes of perpendicular lines is discussed in this lesson. It is 6 of 6 in the series titled "Slope in Perpendicular Lines."
Sophia Learning
Sophia: Midpoint of a Line Segment: Lesson 2
This lesson explains the definition, location, and labeling of midpoints. It is 2 of 6 in the series titled "Midpoint of a Line Segment."