Mathematics
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Inequalities: Interval Notation
Inequalities compare quantities that are not necessarily equal. Instead of identifying one exact value, an inequality often describes an entire…
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Geometric Series: Formula, Rules & Examples
A geometric series is the sum of the terms of a geometric sequence, where each term after the first is…
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Function Notation: Formula, Rules & Examples
Function notation is a compact way to describe a rule that assigns an output to an input. If a function…
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Factoring Quadratics: Formula, Rules & Examples
Factoring quadratics means rewriting a quadratic expression as a product of simpler factors. For example: x² + 5x + 6…
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Exponential Equation: Formula, Rules & Examples
An exponential equation is an equation in which the unknown variable appears in an exponent. Examples include: 2ˣ = 16…
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Domain And Range: Formula, Rules & Examples
Domain and range describe the valid inputs and possible outputs of a function. The domain is the set of values…
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Discriminant: Formula, Rules & Examples
The discriminant is the part of the quadratic formula that determines the number and type of solutions a quadratic equation…
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Direct Variation: Formula, Rules & Examples
Direct variation describes a relationship in which one variable changes in constant proportion to another. The standard formula is: y…
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Difference Of Squares: Formula, Rules & Examples
The difference of squares is a special algebraic pattern that allows an expression containing two perfect squares separated by subtraction…
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De Moivre’s Theorem: Definition, Formula & Example
De Moivre’s theorem provides a powerful way to calculate integer powers of complex numbers written in trigonometric or polar form.…
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