Mathematics key terms

The running total of frequencies up to a stated value or class boundary.

A graph showing cumulative frequency against the upper class boundaries of grouped data.

A bent, rather than flat, part of the surface of a 3D shape.

A simpler region removed from a larger enclosing shape when area is found by subtraction.

A quadrilateral whose four vertices lie on one circle.

A three-dimensional solid with a constant circular cross-section.

Money leaving a bank account, reducing its balance.

A change in which a quantity decreases over time, often by the same proportion or percentage in each period.

A number written using place value and a decimal point, such as $4.27$ or $-0.6$.

The number of digits written after the decimal point.

The number of digits written after the decimal point.

The point separating the units digit from the tenths digit in a decimal number.

A systematic search using successively smaller decimal steps to narrow the interval containing a root.

The level of precision used to state a value, such as a given number of decimal places or significant figures.

The bottom number of a fraction; it records how many equal parts make one whole. It cannot be zero.

The mass per unit volume of a substance or object.

Events for which the occurrence of one changes the probability of a later event.

A repeated decrease in the value of an item, usually expressed as a percentage per time period.

The distance from the front of an object to its back.

Arranging values from largest to smallest.

A line segment joining two non-adjacent vertices of a polygon.

A chord that passes through the centre of a circle, or its length.

The result of a subtraction.

The identity $A^2-B^2=(A+B)(A-B)$, used when one complete square is subtracted from another.

A relationship of the form $y=kx$, where the ratio $\frac{y}{x}$ is constant and the graph passes through the origin.

A break in a graph where the function has no value or the curve cannot be drawn continuously.

Numerical data that can take only particular separated values, such as whole-number counts.

A quantity made from separate countable values, usually whole numbers, such as a number of cars.

The quantity $b^2-4ac$ in the quadratic formula; its sign determines how many real roots a quadratic equation has.

The change in position from the starting point, including direction.