By McGraw-Hill Education

This system scholars want; the focal point lecturers wish! Glencoe Algebra 2 is a key application in our vertically aligned highschool arithmetic sequence constructed to assist all scholars in attaining a greater figuring out of arithmetic and increase their arithmetic ratings on today’s high-stakes checks.

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Additional resources for Algebra 2, Student Edition

Example text

4 + -15 - 7 Simplify 5(-3) first. 4 + -22 Subtract 7 from -15. 4 Add. 1 1A. Evaluate 4x + 3 - 3_ if x = -2. 2 1B. 1 Evaluate 1_ 2y + 1 if y = -_2 . 3 3 Lesson 1-4 Solving Absolute Value Equations Robert Yager/Getty Images 27 Absolute Value Equations Some equations contain absolute value expressions. The definition of absolute value is used in solving these equations. For any real numbers a and b, where b ≥ 0, if a = b, then a = b or -a = b. This second case is often written as a = -b.

4 47. - √25 48. 10 Chapter 1 Equations and Inequalities √_49 45. √169 49. 36 √_ 49 1-2 Properties of Real Numbers Main Ideas • Classify real numbers. • Use the properties of real numbers to evaluate expressions. New Vocabulary real numbers rational numbers irrational numbers Manufacturers often offer coupons to get consumers to try their products. Some grocery stores try to attract customers by doubling the value of manufacturers’ coupons. You can use the Distributive Property to calculate these savings.

28) Examples 2–4 (pp. 5. 1. a + 12 2. -6b 3. 2 FOOD For Exercises 4–6, use the following information. Most meat thermometers are accurate to within plus or minus 2°F. 4. If a meat thermometer reads 160°F, write an equation to determine the least and greatest possible temperatures of the meat. 5. Solve the equation you wrote in Exercise 4. 6. Ham needs to reach an internal temperature of 160°F to be fully cooked. To what temperature reading should you cook a ham to ensure that the minimum temperature is reached?