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Published byMerryl McCarthy Modified over 8 years ago

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EXAMPLE 1 Finding Absolute Value EXAMPLE 2 An eyeglass prescription is given as a positive or negative number. A prescription for a person who is farsighted is positive. A prescription for a person who is nearsighted is negative. The greater the absolute value, the stronger the prescription. Which prescription is stronger, –3 or 2 ? Eyeglasses

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EXAMPLE 1 Finding Absolute Value EXAMPLE 2 SOLUTION The prescription of –3 is stronger because 3 > 2. ANSWER – 3 = 3 and 2 = 2.

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EXAMPLE 1 Finding Opposites EXAMPLE 3 Write the opposite of the integer. a. 5 b. –12 c. –9 The opposite of 5 is –5. The opposite of –12 is 12. Because –9 = 9, the opposite of –9 is –9.

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EXAMPLE 1 GUIDED PRACTICE for Examples 2 and 3 Write the absolute value and the opposite of the integer. 4. –16 5. 140 6. –1 The opposite of –16 is 16. The absolute value of –16 = 16. The opposite of 140 is –140. The absolute value of 140 = 140. The opposite of –1 is 1. The absolute value of –1 = 1.

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EXAMPLE 1 GUIDED PRACTICE for Examples 2 and 3 Write the absolute value and the opposite of the integer. 7. 0 The opposite of 0 is 0. The absolute value of 0 = 0.

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