### Home > GC > Chapter 4 > Lesson 4.2.3 > Problem 4-72

4-72.

**Examine** the graph at right with slope triangles

Find the slope of the line using slope triangle

, slope triangle , and then slope triangle . Refer to the Math Notes box in Lesson 4.1.1.

Hernisha’s slope triangle has a slope of

. What do you know about her line? How does her slope relate to the slope of the line above?