Solving an Absolute Value Equation Solving an Absolute

Solving an Absolute Value Equation

Solving an Absolute Value Equation You have already used graphs and mental math to solve some absolute value equations. For instance: This has two solutions: 8 and -8

Solving an Absolute Value Equation Solve: What are the number(s) whose absolute value is 9? Find the x that makes 2 x-5 equal POSITIVE 9 In order to solve for x, you have to UNDO the absolute value. The absolute value of 9 AND -9 is 9 Find the x that makes 2 x-5 equal NEGATIVE 9

Solving an Absolute Value Equation Solve: What are the number(s) whose absolute value is 15? Find the x that makes 3 x equal POSITIVE 15 In order to solve for x, you have to ISOLATE the absolute value expression In order to solve for x, you have to UNDO the absolute value. The absolute value of 15 AND -15 is 9 Find the x that makes 3 x equal NEGATIVE 15

Solving an Absolute Value Equation Solve: What are the number(s) whose absolute value is 0? Since +0 and -0 are the same number. There is only ONE Answer. In order to solve for x, you have to UNDO the absolute value. The absolute value of +0 AND -0 is 0

Solving an Absolute Value Equation Solve: In order to solve for x, you have to ISOLATE the absolute value expression What are the number(s) whose absolute value is -3? In order to solve for x, you have to UNDO the absolute value. NOT POSSIBLE The absolute value of a number can not be negative. This equation has NO SOLUTIONS.