Learn about functions, their properties, and how to work with them in algebra on Khan Academy.

What are rational functions? How do we plot them? What is their domain and range? Let's find out. We break down the definition of the function given in set-builder form and plot the graph …

This topic covers: - Evaluating functions - Domain & range of functions - Graphical features of functions - Average rate of change of functions - Function combination and composition - …

Este tema cubre: - Evaluar funciones - Dominio y rango de funciones - Características gráficas de funciones - Tasa promedio de cambio de funciones - Combinación y composición de …

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a …

Este tópico abrange: - Cálculo de funções - Domínio e contradomínio de funções - Características gráficas de funções - Taxa de variação média de funções - Combinação e composição de …

This topic covers: - Solving quadratic equations - Graphing quadratic functions - Features of quadratic functions - Quadratic equations/functions word problems - Systems of quadratic …

Graphs of sin(x), cos(x), and tan(x): Trigonometric functions Amplitude, midline, and period: Trigonometric functions Transforming sinusoidal graphs: Trigonometric functions Graphing …

Test your understanding of Polynomial expressions, equations, & functions with these 35 questions.

Learn algebra—variables, equations, functions, graphs, and more. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.