Chapter 4 - Section 4.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 215: 11b

Selected points: (30, 95) and (60, 70) $y=-0.833x+120$

The slope: $m=\frac{y_2-y_1}{x_2-x_1}=\frac{70-95}{60-30}=-0.833$ The equation of the line: $m=\frac{y-y_1}{x-x_1}$ $-0.833=\frac{y-95}{x-30}$ $-0.833(x-30)=y-95$ $-0.833x+25+95=y$ $y=-0.833x+120$