OCR GCSE Mathematics key terms

A polynomial function whose highest power of $x$ is 1; its graph is a straight line.

A straight-line graph, such as the graph of $y=mx+c$.

A straight line drawn by eye to represent the overall trend of points on a scatter diagram.

A line that divides a shape into two halves which are mirror images of one another.

A finite part of a line with two endpoints.

The complete set of points that satisfy a given geometrical condition.

The smallest boundary of the possible values of a quantity.

The value approximately one-quarter of the way through an ordered distribution, with about 25% of the data below it.

The smallest positive whole number that is a multiple of each of the given numbers.

The distance of a number from zero, ignoring its sign; for example, the magnitude of $-3.7$ is $3.7$.

The longer arc joining two points on a circle.

The larger sector formed by two radii, with a reflex central angle greater than $180^\circ$.

An equation used to represent and predict how a real quantity changes.

A value found by adding all the data values and dividing by the number of values.

The middle value of ordered data, or the mean of the two middle values when there is an even number of values.

A point that divides a line segment into two equal lengths.

The shorter arc joining two points on a circle.

The smaller sector formed by two radii, with a central angle less than $180^\circ$.

The line across which a shape is reflected; it lies halfway between every point and its corresponding image point.

A number written as a whole number together with a proper fraction, such as $2\frac{1}{3}$.

The class interval containing the greatest frequency.

The data value that occurs most frequently.

A quadratic expression whose coefficient of $x^2$ is $1$.

A number obtained by multiplying a given whole number by a whole number.

A chart with bars placed side by side within each category so that two or more groups can be compared.

The scale factor by which a quantity is multiplied during each time period.

Events that cannot both occur in the same trial.