Exploring Absolute Value Equations

The video tutorial introduces the concept of absolute value, defining it as the distance a number is from zero. It explains how to solve basic absolute value equations, highlighting that such equations often have two solutions due to the nature of absolute value. Special cases where there is no solution or only one solution are discussed. The tutorial also covers advanced problem-solving strategies, emphasizing the importance of isolating the absolute value portion before solving. The video concludes with a summary of key points and encourages students to think critically about the concepts discussed.

What is the definition of absolute value?

• The distance a number is from zero

• The product of a number and zero

• The difference between a number and zero

• The sum of a number and zero

Tags

CCSS.6.NS.C.7C

If the absolute value of x is 7, what are the possible values of x?

• 7 and 14

• 7 and 0

• 7 and -14

• 7 and -7

Why do absolute value equations typically have two solutions?

• Because a number and its opposite have the same absolute value

• Because absolute value is always positive

• Because absolute value can be both positive and negative

• Because absolute value is always negative

What is the solution to the equation |x| = -5?

• x = 0

• No solution

• x = -5

• x = 5

In which case does an absolute value equation have only one solution?

• When the absolute value is equal to zero

• When the absolute value is equal to a negative number

• When the absolute value is equal to any number

• When the absolute value is equal to a positive number

What is the first step in solving an advanced absolute value equation?

• Isolate the absolute value portion

• Multiply both sides by a constant

• Add a constant to both sides

• Subtract a constant from both sides

If |2x + 3| = 9, what are the possible values of x?

• x = -3 and x = -6

• x = 3 and x = -6

• x = -3 and x = 6

• x = 3 and x = 6

What must be true about the value inside the absolute value bars for |x - 5| = 8?

• It must be equal to 8

• It must be equal to 0

• It must be equal to 8 or -8

• It must be equal to -8

What should you do before splitting an absolute value equation into two problems?

• Multiply both sides by a constant

• Add a constant to both sides

• Isolate the absolute value portion

• Solve for x

Why can't an absolute value be equal to a negative number?

• Because absolute value represents a distance, which can't be negative

• Because absolute value is always positive

• Because absolute value is always zero

• Because absolute value is always negative

Tags

CCSS.6.NS.C.7C