Absolute Value Equations 5/30/2018 Absolute Value Equations Chapter 1.6 1

Absolute Value Equations 5/30/2018 Absolute Value Equations Absolute value is the distance from zero. When graphed into a graphing calculator, it is shaped in a “v” Using absolute value makes values positive. 2

5/30/2018 Quick Examples Example 1: What is the absolute value of 25? Example 2: |–25| = x, what is the value of x? Example 3: |x| = 25, what is the value of x? |25|= 25 25 25 -25 3

Steps for Absolute Value Equations 5/30/2018 Steps for Absolute Value Equations Write two equations, with one answer being positive and the other being negative Solve each equation Check each solution and make sure there aren’t any extraneous solutions 4

5/30/2018 Example 1 Solve and check for extraneous solutions 5

5/30/2018 Example 2 Solve and check for extraneous solutions 6

5/30/2018 Your Turn Solve and check for extraneous solutions 7

5/30/2018 Example 3 Solve and check for extraneous solutions 8

5/30/2018 Example 4 Solve and check for extraneous solutions 9

5/30/2018 Example 5 Solve and check for extraneous solutions 10

5/30/2018 Example 6 Solve and check for extraneous solutions 11

Assignment First Half of Worksheet Remember: p. 123 DUE TODAY 5/30/2018 Assignment First Half of Worksheet Remember: p. 123 DUE TODAY p. 133 DUE MONDAY 12