Precalculus

IXL offers hundreds of Precalculus skills to explore and learn! Not sure where to start? Go to your personalized Recommendations wall to find a skill that looks interesting, or select a skill plan that aligns to your textbook, state standards, or standardized test.

IXL offers hundreds of Precalculus skills to explore and learn! Not sure where to start? Go to your personalized Recommendations wall to find a skill that looks interesting, or select a skill plan that aligns to your textbook, state standards, or standardized test.

B. Families of functions

  1. 1
    Function transformation rules
  2. 2
    Translations of functions
  3. 3
    Reflections of functions
  4. 4
    Dilations of functions
  5. 5
    Transformations of functions
  6. 6
    Describe function transformations

E. Rational functions

  1. 1
    Rational functions: asymptotes and excluded values
  2. 2
    Solve rational equations
  3. 3
    Check whether two rational functions are inverses

G. Radical functions

  1. 1
    Domain and range of radical functions
  2. 2
    Solve radical equations

J. Systems of inequalities

  1. 1
    Solve systems of linear inequalities by graphing
  2. 2
    Solve systems of linear and absolute value inequalities by graphing
  3. 3
    Find the vertices of a solution set
  4. 4
    Linear programming

K. Nonlinear inequalities

  1. 1
    Graph solutions to quadratic inequalities
  2. 2
    Solve quadratic inequalities
  3. 3
    Graph solutions to higher-degree inequalities
  4. 4
    Solve higher-degree inequalities

O. Trigonometric identities

  1. 1
    Complementary angle identities
  2. 2
    Symmetry and periodicity of trigonometric functions
  3. 3
    Trigonometric identities I
  4. 4
    Trigonometric identities II

Q. Real numbers

  1. 1
    Sort rational and irrational numbers
  2. 2
    Classify rational and irrational numbers
  3. 3
    Properties of operations on rational and irrational numbers