8.3 Practice Day

In this Practice Day, students practice what they’ve learned so far in this unit, with extra attention on topics from the more recent lessons.

By Desmos Classroom

Learning goals: Learning Goals • Compare two different proportional relationships given different representations of them. (Lesson 3) • Recognize that the rate of change of a linear relationship is the same value as the slope of the graph of the relationship. (Lesson 4) • Identify and interpret the positive vertical intercept of the graph of a linear relationship. (Lesson 5) • Develop a procedure for calculating slope based on the coordinates of two points. (Lesson 5) • Connect the equations `y=b+mx` and `y=mx+b` to the graph. (Lesson 6) • Understand the difference in visual appearance between lines with positive slopes, lines with negative slopes, and lines with zero slope. (Lesson 7) • Interpret a line with a negative slope that represents a real-world situation. (Lesson 7) • Write equations of horizontal and vertical lines. (Lesson 9) • Write equations of lines that have a negative slope. (Lesson 9) • Understand that the graph of an equation is a visual representation of the set of all solutions to an equation. (Lesson 10) • Recognize that solutions to linear equations may be limited based on real-world constraints on the quantities. (Lesson 11) • Solve and interpret solutions in contexts using multiple representations of non-proportional linear relationships. (Lesson 11)