Linear function
Learn linear functions from scratch, see simple examples, and move on to exercises with linear equations and inequalities.
Learning
Linear function theory
Short explanations, illustrations, and examples that help you understand the formula y = ax + b.
Practice
Equations and inequalities
Solve examples step by step, check the zero of a function, and analyze the solution graph.
Theory and examples
Understand linear functions step by step
Short lessons show where the results in exercises come from. Start with the basics or go straight to the graph, formula, or zero of a function.
Linear function from scratch
The simplest explanation of what a linear function is and how to read its formula.
FormulaLinear function formula
What the numbers a and b mean in y = ax + b and how they affect the line.
GraphLinear function graph
How to draw a line from a table, two points, or directly from the formula.
ZeroZero of a linear function
How to find the X-axis intercept and what the result of ax + b = 0 means.
ExercisesLinear equations and inequalities
Practice tasks step by step, check the zero of a function, and see the solution on a graph.
