Scatter Plot

A graph on which two different sets of data are plotted using coordinates.

Set

A collection of numbers or objects

Simplify

distributing, combining like terms, etc

Slope of a Line

The ratio of the vertical change to the horizontal change between two points, represented in equations by m

Slope-Intercept Form of an Equation

A way of writing a linear equation where the y-variable is isolated on one side of the equation. Slope-intercept looks like y = mx + b, where m equals the slope and b equals the y-intercept.

Solution

The value for the variable that makes the equation true.

Solution to a System of Equations

The pair of values that make both equations true

Square Roots

A number times itself equals the square under the radical sign

Standard Form

When the polynomial is listed with each term in decreasing order of degree

Standard Form of a Quadratic Equation

y = ax² + bx + c
when the quadratic expression is listed with each term in decreasing order of degree

Standard Form of an Equation

An equation is in standard form when the x term and the y term are written on the same side of the equal sign, with the constant (number-only term) on the other side. Ax + By = C

Subset

Every element of one set (the subset) is also listed in another set. Subsets are represented by circles in a Venn Diagram.

Substitution

If two quantities are equal, one quantity may be put in the place of the other quantity and the value of the expression does not change.

Substitution Method

Isolating one variable in one of the equations and substituting it into the other equation

Sum

The result of adding.

Symmetric

The same on one side as it is on the other. A circle cut in half has two symmetrical sides.

Symmetric Property

The order on either side of the equal sign does not matter. One side of the equation is the same as the other (think symmetrical) 3 = 2 + 1, 2 + 1 = 3

System of Equations

A collection of two or more equations