Worksheet, quiz, and solutions accompanying the video lesson Cartesian Coordinates Explained: Plotting Points, Quadrants & SlopeVideo Description: Learn the coordinate plane the right way—by connecting geometry to algebra. In this lesson, we build the Cartesian (xy) plane from two perpendicular number lines, plot points and classify quadrants, then use two points to define a line, compute slope (“rise over run”), and find the midpoint. Perfect for middle school through adult learners, homeschoo