Absolute value of a number
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The document defines and provides examples of absolute value. It explains that the absolute value of a number is the distance between that number and zero. It is denoted by vertical lines (| |) around the number. Some key points made include: - The absolute value of a number is never negative - Absolute value operations can be performed on expressions involving addition, subtraction and numbers - Absolute values can be compared using less than, greater than and equal to symbols The document contains examples and practice problems for students to calculate and compare absolute values. It assigns a worksheet for students to complete and submit.
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Absolute value of a number
- 1. ABSOLUTE VALUE OF A NUMBER 10/7/2 0
- 2. ACTIVITY! “WHAT’S THE OPPOSITE?”1. 3 2. – 4 3. 5 4. – 6 5. 7 –3 4 – 5 – 6 OPPOSIT E “additive inverse”
- 4. ABSOLUTE VALUE The absolute value of a number is the distance between that number and zero. It is denoted by (| |) two bars. Example: |2| = 2 “the absolute value of 2 is 2” |-2| = 2 “the absolute value of -2 is 2” -|2| = -2 “the negative absolute value of 2 is -2”
- 5. ABSOLUTE VALUE WHAT IS THE DISTANCE OF 4 FROM ZERO? WHAT IS THE DISTANCE OF -4 FROM ZERO? 4 4 ⃓ 4⃓= ⃓ – 4⃓=
- 6. REMEMBER: The absolute value of a number is the DISTANCE between that number and zero. It is NEVER negative.
- 7. ABSOLUTE VALUE⃓ 4 + 2⃓ =⃓ 6⃓ = 6 ⃓ 10 - 2⃓ = =⃓ 8⃓ 8 ⃓ - 9⃓ –⃓ 2⃓= 9 - 2 = 7 –⃓ 6⃓ = – 6
- 8. COMPARE USING <, > OR =. ⃓ 2⃓ _______ –⃓ 2⃓ ⃓ 10 – 2⃓ _______ ⃓ 6 + 2⃓ – ⃓ 5 –2 ⃓ _______ –⃓ 1 + 1⃓ > = <
- 9. TEST YOURSELF!1.⃓ 3⃓ 2.⃓ – 10⃓ 3.⃓ – 14⃓ 4.⃓ 9⃓ 5. –⃓ 3⃓ = = = = = -10 3 14 9 -3
- 10. COMPARE USING <, > OR =. ⃓ 5⃓ _______ –⃓ 5⃓ –⃓ 9 – 2⃓ _______ ⃓ 6 + 1⃓ –⃓ 4 – 2 ⃓ _______ –⃓ 2 + 1⃓ – ⃓ 10 – 3 ⃓ _______ –⃓ 6 + 1⃓ > – ⃓ 5 –2 ⃓ _______ –⃓ 1 + 1⃓ < > = <
- 11. ASSIGNM ENT!In your notebook answer PAGE 36 Check your Progress # 1-5 TO BE SUBMITT ED ON FRIDAY (OCTOBE R 9, 2020)