Easiest Way To Solve an Absolute Value Equation and Determine when Only One Solution

Easiest Way To Solve an Absolute Value Equation and Determine when Only One Solution

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to solve absolute value inequalities by setting up two cases: one positive and one negative. It emphasizes the importance of isolating the absolute value and solving for X by ensuring variables are on the same side. The tutorial also highlights the necessity of checking solutions, especially when dealing with variables on both sides, to ensure they are valid. The only valid solution in the example is X = 11/8, as absolute values cannot equal negative numbers.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving an absolute value inequality?

Distribute the negative sign

Check the solutions

Isolate the absolute value

Set up two cases

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we set up two cases when solving absolute value inequalities?

To simplify the equation

To consider both positive and negative scenarios

To avoid negative numbers

To eliminate variables

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do after setting up the two cases in an absolute value inequality?

Multiply by a constant

Solve for X

Check for extraneous solutions

Add variables to both sides

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to verify solutions in absolute value inequalities?

To confirm the solution satisfies the original equation

To eliminate negative values

To ensure the solution is positive

To simplify the equation further

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if an absolute value equation results in a negative number?

The equation needs to be simplified

The equation has no solution

The solution is extraneous

The solution is valid