Functions

Lessons

Work through them in order – each builds on the one before.

1. 1

   Lesson 1High school~10 minContinue here

   Function Basics

   Function definition, domain and range

   →
2. 2

   Lesson 2High school~12 min

   Quadratic Functions

   Parabola and its properties

3. 3

   Lesson 3High school~11 min

   Exponential Functions

   Functions of form a^x

4. 4

   Lesson 4High school~11 min

   Sine Function

   Sine function and its graph

5. 5

   Lesson 5High school~12 min

   Inverse Functions

   Finding inverse functions

6. 6

   Lesson 6High school~12 min

   Rational Functions

   Functions of form P(x)/Q(x)

7. The goal of this topic

   Once the lessons are behind you, prove you really know the topic. Three levels – easy, hard and expert.

   Mastery test

   Functions

   Function values, quadratics, exponentials, logarithms and inverse functions.

   • 20 questions
   • 100% required
   • Increasing difficulty

   Mastery

   Three levels. Only 100% unlocks each one.

   0 of 3 levels mastered

   • Easy

     Basic understanding

     20 questions · 100% to master

     Best score

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   • HardLocked

     Advanced understanding

     20 questions · 100% to master

     Best score

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     Attempts

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     Score 100% on Easy Mastery to unlock this level.

   • ExpertLocked

     Deep understanding

     20 questions · 100% to master

     Best score

     -

     Attempts

     0

     Score 100% on Hard Mastery to unlock this level.