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Math - Algebra

Functions - Example 1

In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. An example is the function that relates each real number x to its square x, given by the rule for all real numbers x, (x) = x. The output of a function f corresponding to an input x is denoted by f(x) (read "f of x"), y, or f(x) (read "f of x", "f at x", or "f of x"). In this example, if the input is ?3, then the output is 9, and we may write f(?3) = 9, or simply f(?3) = 9. If the input variable, x, is represented by the letter "x", then the output variable, f(x), is sometimes represented by the letter "y" in functional notation, especially in computer science.

Lily An

Introduction to Equations

Equation of a Line - Overview

Equations of a Line - Example 1

Equations of a Line - Example 2

Equations of a Line - Example 3

Equations of a Line - Example 4

Equations of a Line - Word Problem

Introduction to Inequalities

Introduction to Inequalities - Example 1

Introduction to Inequalities - Example 2

Introduction to Inequalities - Example 3

Introduction to Inequalities - Example 4

Parallel and Perpendicular Lines - Overview

Parallel and Perpendicular Lines - Example 1

Parallel and Perpendicular Lines - Example 2

Parallel and Perpendicular Lines - Example 3

Parallel and Perpendicular Lines - Example 4

Unit Conversions - Overview

Unit Conversions - Example 1

Unit Conversions - Example 2

Unit Conversions - Example 3

Unit Conversions- Example 4

Rounding - Overview

Rounding - Example 1

Rounding - Example 2

Rounding - Example 3

Rounding - Example 4

Systems of Equations - Overview

Systems of Equations - Example 1

Systems of Equations - Example 2

Systems of Equations - Example 3

Systems of Equations - Example 4

Distance, Rate, and Time - Overview

Distance, Rate, and Time - Example 1

Distance, Rate, and Time - Example 2

Distance, Rate, and Time - Example 3

Functions - Overview

Functions - Example 1

Functions - Example 2

Functions - Example 3

Functions - Example 4

Function Machines - Overview

Function Machines - Example 1

Function Machines - Example 2

Function Machines - Example 3

Function Machines - Example 4

Introduction to Equations - Example 1

Introduction to Equations - Example 2

Introduction to Equations - Example 3

Introduction to Equations - Example 4

Systems of Equations w/ Two Totals - Overview

Systems of Equations w/ Two Totals - Example 1

Systems of Equations w/ Two Totals - Example 2

Systems of Equations w/ Two Totals - Example 3

Systems of Equations w/ Two Totals - Example 4

Harder Systems of Equations and Inequalities - Overview

Harder Systems of Equations and Inequalities - Example 1

Harder Systems of Equations and Inequalities - Example 2

Harder Systems of Equations and Inequalities - Example 3

Harder Systems of Equations and Inequalities - Example 4

Graphs of Linear Equations - Overview

Graphs of Linear Equations - Example 1

Graphs of Linear Equations - Example 2

Graphs of Linear Equations - Example 3

Graphs of Linear Equations - Example 4

Scatterplots - Overview

Scatterplots - Example 1

Scatterplots - Example 2

Scatterplots - Example 3

Scatterplots - Example 4

Percents - Overview

Percents - Example 1

Percents - Example 2

Percents - Example 3

Percents - Example 4