Algebra And Functions: Math Terms Explained

Plain-language definitions of every algebra and functions term your child meets in school, each with kid-friendly explanations, worked examples, and common mistakes to watch for.

Linear equation

A linear equation is an equation where each variable is only to the first power and whose graph forms a straight line, often written in forms like y = mx + b or ax + b = c.

Linear function

A linear function is a function whose graph is a straight line, which can be written in the form y = mx + b where m is the constant rate of change (slope) and b is the y-intercept.

Literal equation

A literal equation is an equation made up mostly of letters (variables) that can be solved or rearranged to isolate one chosen variable in terms of the others.

Logarithm

A logarithm is an operation that tells you what exponent you put on a base number to get a certain result, for example log2(8) = 3 because 23 = 8.

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