Curriculum
Course: General Mathematics — Second Secondary
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Curriculum

General Mathematics — Second Secondary

Unit 1: Real Functions and Curve Sketching

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Unit 2: Exponents, Logarithms and Applications

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Unit 3: Limits

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Unit 4: Trigonometry

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Text lesson

Monotonicity of Functions

General Mathematics — Second Secondary

Monotonicity of Functions

Lesson summary

Lesson summary

  • A function is increasing on an interval if its values rise as x increases, and decreasing if they fall.
  • Read monotonicity from a graph by following the curve from left to right, or from a table of values.
  • A quadratic function changes its monotonicity at the vertex x0 = −b / (2a).
  • Always state the interval together with the monotonicity.
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