UP:MA19.PRE.26

Vocabulary

  • Rational functions
  • Horizontal asymptote
  • Vertical asymptote
  • Slant asymptote
  • Amplitude
  • Period
  • Phase shift
  • Domain
  • Range
  • Frequency
  • Midline

Knowledge

Students know:
  • Techniques for graphing,
  • Key features of graphs of functions.

Skills

Students are able to:
  • Determine horizontal, vertical, and slant asymptotes of rational functions, and use these to sketch the graphs, identifydomains and ranges, and end behaviors.
  • Sketch the graphs, analyze, compare, and identify domains and ranges of the basic trigonometric functions: sine, cosine, tangent, cotangent, secant, and cosecant.
  • Find the amplitude and period of a trigonometric function and use these characteristics to sketch its graph.
  • Identify and sketch translations of trigonometric graphs (vertical shifts and phase shifts).
  • Evaluate, graph and identify the domains and ranges of inverse trigonometric functions.

Understanding

Students understand that:
  • A rational function is the ratio of two polynomial functions.
  • Rational functions contain restrictions on their domains and/or ranges. Therefore, their graphs contain asymptotes, holes, and/or discontinuity.
  • The graphs of rational functions vary, yielding various patterns.
  • Using algebraic methods to manipulate and/or solve the equation of a rational function can help determine important properties such as its zeroes, intercepts, asymptotes, domain, range, types of discontinuity, and end behavior.
  • Key characteristics (rational and trigonometric) of functions can help you visualize the sketch of it's graph and can lead to more effective and efficient graphing methods.
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