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A great cook knows how to take basic ingredients and prepare a delicious meal. In this topic, you will become function-chefs! You will learn how to combine functions with arithmetic operations and how to compose functions. You will also learn how to transform functions in ways that shift, reflect, or stretch their graphs. Finally, you will learn about inverse functions and how to find them!

www.mathplanet.com/education/algebra-2/how-to-graph-functions-and-linear...

A function is an equation that has only one answer for y for every x. A function assigns exactly one output to each input of a specified type. It is common to name a function either f(x) or g(x) instead of y. f(2) means that we should find the value of our function when x equals 2.

www.sparknotes.com/math/algebra2/functions

From a general summary to chapter summaries to explanations of famous quotes, the SparkNotes Algebra II: Functions Study Guide has everything you need to ace quizzes, tests, and essays.

www.mathsisfun.com/sets/function.html

what goes into the function is put inside parentheses after the name of the function: So f(x) shows us the function is called "f", and "x" goes in. And we usually see what a function does with the input: f(x) = x 2 shows us that function "f" takes "x" and squares it.

www.mathsisfun.com/algebra/index-2.html

Algebra 2. OK. So what are you going to learn here? You will learn about Numbers, Polynomials, Inequalities, Sequences and Sums, many types of Functions, and how to solve them. You will also gain a deeper insight into Mathematics, get to practice using your new skills with lots of examples and questions, and generally improve your mind. ...

www.ixl.com/math/algebra-2/identify-functions

Improve your math knowledge with free questions in "Identify functions" and thousands of other math skills.

Learn algebra 2 for free—tackle more complex (and interesting) mathematical relationships than in algebra 1. Full curriculum of exercises and videos. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more.