Algebra and Functions

All major function types from school algebra — with graphs, formulas, and an interactive trainer.

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Functions in algebra — main types

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Frequently asked questions

What is a function in algebra?

A function is a relation between sets where each input x corresponds to exactly one output y. Written as y = f(x).

What are the main types of functions studied in school?

Linear y=kx+b, quadratic y=ax²+bx+c, exponential y=aˣ, logarithmic y=logₐx, trigonometric sin x, cos x, tan x.

How do you graph a function?

Create a value table: choose several x values, calculate the corresponding y values, plot the points, and connect them with a smooth curve.