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Algebra 2 Lesson 5-3

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Doman and range from graph

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Algebra 2 Lesson 5-3

  1. 1. Discrete  vs  Continuous "Jump around" "Smoooooooth" http://mathdemos.gcsu.edu/mathdemos/domainrange/domainrange.html 1
  2. 2. Day 3 ­ Finding domain from a graph, restricted domains When your curve is continuous, there is a range of values that  will be included in the domain and range.  Therefore, they  should be expressed as an INEQUALITY. Domain:  Input or x values Range:  Output or y values highest t t igh lef st  r st  the the far lowest far 2
  3. 3. Find the domain and range of the following: 1. 2. You try... 3. 4. 3
  4. 4. 7. 8. 4
  5. 5. 15.  Sketch a function with a domain of  ­ 3 ≤ x ≤ 5  and a range of ­ 4 ≤ y ≤ 8 16.  Sketch a function with a domain of  {1, 2, 3} and a range of {­4, ­5, ­6} 5
  6. 6. Examples with restricted domains... 1:  f(x) = 2x + 5 2:  g(x) = 1 + 4x ­ x2 Domain: {x | ­3 ≤ x ≤ 6} Domain: {x | 0 ≤ x ≤ 4} Find the range. Find the range. 6

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