Equations, expressions and essential techniques for solving everyday problems.
Articles in path
5
Slug
algebra
Category
Algebra
When each number in a sequence is obtained by adding the same constant to the previous one, you have an arithmetic sequence. Learn how to find any term and calculate sums without listing every element.
A linear function describes any relationship that grows or decreases at a constant rate. Learn to identify the coefficients, draw the graph, and extract practical information such as the break-even point and zero of the function.
Learn to solve quadratic equations by the roots: identify the coefficients, calculate the discriminant, and apply the quadratic formula with confidence — or choose the fastest method for each case.
When two conditions must be satisfied simultaneously, we set up a system. Discover the most efficient methods for solving systems and understand what happens when there is no unique solution.
Understand the equilibrium principle behind every equation and solve any first-degree expression with confidence — no formulas to memorise.