Chapter 4 - An Introduction to Functions - 4-3 Patterns and Nonlinear Functions - Lesson Check - Page 249: 2

y=3x−2

From the first coordinate, we can see the y-intercept is −2. Then to find the slope, we can do rise-over-run between the first and second coordinates $\frac{1−(−2)}{1−0}=3/1=3.$ Now we plug those values into y=mx+b to find y=3x−2.