In Exercises 19 and 20, find the parametric equation of the line through a parallel to b.

Math121 Chapter 3 Lesson 3.4 – Parallel and Perpendicular Lines EXAMPLE 1. 4x + 2y = 10 (First, we’re asked to put this in y = mx + b form.) 2y = -4x + 10 y = -2x + 5 (Now, we’re asked to find the equation for a line that is parallel to the...