Unit 3 - Lesson 10 - Grade 8: Illustrative Mathematics

Without calculating, do you expect the slope of the line through (1, 11) and (8, 2) to be positive or negative? How can you tell?

Calculate the slope of this line.

When finished, place the drawing next to the card with the design so that you and your partner can both see them. How is the drawing the same as the design? How is it different? Discuss any miscommunication that might have caused the drawing to look different from the design.

(0, 5) and (8, 2)

(2, -1) and (6, 1)

(-3, -2) and (-1, -5)