Chapter 2 - Graphs and Functions - 2.5 Equations of Lines and Linear Models - 2.5 Exercises - Page 243: 44

(a) $3$ (b) $-5$ (c) $y=3x-5$

(a) Select two points $(0,-5),(3,4)$, we have the slope $m=\frac{-5-4}{0-3}=3$ (b) As $x=0, y=-5$, the y-intercept of the line is $-5$ (c) With the known slope and y-intercept, we have the equation as $y=3x-5$