Mathematics key terms

A pair of perpendicular numbered lines used to locate points: the horizontal $x$-axis and the vertical $y$-axis.

A pair $(x,y)$ that gives a point's horizontal and vertical positions, in that order.

An ordered pair $(x,y)$ that gives a point's horizontal and vertical position on coordinate axes.

Objects that lie in the same plane.

A tendency for two variables to change together.

Sides or angles that occupy matching positions in two shapes.

Angles at different intersections that occupy the same position relative to a transversal and the two lines it crosses. They are equal when those lines are parallel.

Sides, edges, angles or other features that occupy matching positions in two shapes.

Sides or measurements that occupy matching positions in similar shapes or solids.

Sides, angles or other measurements that occupy matching positions in two figures.

A pair of vertices, sides or angles that occupy matching positions in two shapes.

A vertex or other point on the image that matches a particular point on the original shape.

Points in the same relative position on an object and its image.

A pair of values for the two variables that belong to the same situation, used together when finding the constant of proportionality.

Vertices that occupy matching positions on an original shape and its image.

The ratio of the side adjacent to an angle to the hypotenuse in a right-angled triangle.

A formula relating all three sides of a triangle to one angle, for example $a^2=b^2+c^2-2bc\cos A$.

The amount paid to buy or make an item before selling it.

A value or example that shows a general claim is false.

Money entering a bank account, increasing its balance.

A value of x where the corresponding quadratic expression equals zero; it marks a possible boundary between solution intervals.

A method for solving an equality of fractions: if $\frac{a}{b}=\frac{c}{d}$, then .

The two-dimensional shape exposed when a solid is sliced through.

The result of multiplying a number by itself twice; for a number $n$, its cube is $n^3$.

A number that can be written as $n^3$, where $n$ is a positive integer.

A root whose degree is 3. For example, $\sqrt[3]{-8}=-2$ because .

A polynomial function whose highest non-zero power of the variable is 3, such as $y=x^3-4x$.

A graph of an equation containing an $x^3$ term as its highest power of $x$.

A unit raised to the power three, such as cm³ or m³, used to measure volume.

A solid with six rectangular faces, arranged in three matching opposite pairs.