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Algebra 1

Algebra 1. Unit 3 Review. Algebra 1 – Unit 3 Review. –7 2 16. 5 3. 1 3 6. -5 4. Is each of the following relations also a function? Explain. 1). 2). 3). Algebra 1 – Unit 3 Review. – 12 6 24. 3 1. 3 9 4. – 9 0. ANSWER.

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Algebra 1

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  1. Algebra 1 Unit 3 Review

  2. Algebra 1 – Unit 3 Review –7 2 16 5 3 1 3 6 -5 4 • Is each of the following relations also a function? Explain. • 1) • 2) • 3)

  3. Algebra 1 – Unit 3 Review –12 6 24 3 1 3 9 4 –9 0 ANSWER • Is each of the following relations also a function? Explain. • 1) • 2) Not a function Function • 3) Not a function

  4. Algebra 1 – Unit 3 Review • Is each of the following relations also a function? Explain. • 1) • 2) • 3) {(4, -3), (5, 6), (-9, 2), (0, 6)}

  5. Algebra 1 – Unit 3 Review ANSWER • Is each of the following relations also a function? Explain. • 1) • 2) Function Not a function • 3) {(4, -3), (5, 6), (-9, 2), (0, 6)} Function

  6. Algebra 1 – Unit 3 Review • The following shows the World Series winners since 2009: • Is this relation also a function? • What is the independent variable? • What is the dependent variable?

  7. Algebra 1 – Unit 3 Review ANSWER • The following shows the World Series winners since 2009: • Is this relation also a function? • What is the independent variable? • What is the dependent variable? yes year World Series Champion

  8. Algebra 1 – Unit 3 Review • The following shows the World Series winners since 2009: • What is the domain? • What is the range?

  9. Algebra 1 – Unit 3 Review ANSWER • The following shows the World Series winners since 2009: • What is the domain? • What is the range? { 2009, 2010, 2011, 2012, 2013 } { NY Yankees, SF Giants, St. Louis Cardinals, Boston Red Sox }

  10. Algebra 1 – Unit 3 Review • Which graph best matches the data in the table?

  11. Algebra 1 – Unit 3 Review ANSWER • Which graph best matches the data in the table? The red curve

  12. Algebra 1 – Unit 3 Review • The equation h(t) = -16t2 + 1600 can be used to approximate the position of object dropped from 1600 ft where h is its height and t is the time. • Find h(5). • How long would it take to get to 100 feet?

  13. Algebra 1 – Unit 3 Review ANSWER • The equation h(t) = -16t2 + 1600 can be used to approximate the position of object dropped from 1600 ft where h is its height and t is the time. • Find h(5). • How long would it take to get to 100 feet? h(5) = 1200 ft t  9.68 sec

  14. Algebra 1 – Unit 3 Review • The equation h(t) = -16t2 + 1600 can be used to approximate the position of object dropped from 1600 ft where h is its height and t is the time. • What would be a realistic domain? • What would be the range?

  15. Algebra 1 – Unit 3 Review ANSWER • The equation h(t) = -16t2 + 1600 can be used to approximate the position of object dropped from 1600 ft where h is its height and t is the time. The ground is at h = 0. • What would be a realistic domain? • What would be the range? 0 ≤ t ≤ 10 seconds 0 ≤ h ≤ 1600 feet

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