About News Impact Our team Our interns Our content specialists Our leadership Our supporters Our contributors Our finances Careers Internships Contact Help center Support community Share your …

Explore algebraic functions with interactive lessons and exercises on Khan Academy, enhancing your understanding of mathematical concepts and problem-solving skills.

Functions assign a single output for each of their inputs. In this video, we see examples of various kinds of functions.

8th grade math Learn eighth grade math—functions, linear equations, geometric transformations, and more. (aligned with Common Core standards)

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 function; Exponential …

The Algebra 2 course, often taught in the 11th grade, covers Polynomials; Complex Numbers; Rational Exponents; Exponential and Logarithmic Functions; Trigonometric Functions; Transformations of …

Evaluate functions for specific inputs given the formula of the function. Functions are written using function notation.

Equations and functions are not the same thing, but they can be related in several ways. Watch Jesse Roe and Sal talk about the difference between equations and functions

Good question! Evaluating functions allows us to find what the function's value is given a certain input. When you write f(x), it tells us that there's a function called f whose output value comes from input …

Explore the world of trigonometry by mastering right triangles and their applications, understanding and graphing trig functions, solving problems involving non-right triangles, and unlocking the power of …