Vocabulary PreAlgebra Semester 2 Final Exam Review

The ratio of the rise (vertical change) to the run (horizontal change). It describes the steepness of a line.

A mathematical sentence that contains <,>,\le,\ge

A linear equation in the form y=mx+b where m is the slope and b is the y-intercept

A ratio that compares a number to 100.

A whole number that has exactly two factors, one and itself

Expressions that contain the same variables to the same power, such as 2xand 5x

The amount by which the regular price of an item is reduced.

A rate simplified so that it has a denominator of 1.

An expression that is a number, a variable, or a product of numbers and variables

A comparison of two numbers by division. Can be written as 2 to 4, 2:4, or \frac{2}{4}.

A whole number that has more than two factors

The amount of money paid or earned for the use of money. Interest = principal X rate X time.

If \frac{a}{c}=\frac{b}{d}, then ad=bc.

The amount the price of an item is increased above the price that the store paid for an item.

Special relation where each element of the domain is paired with exactly one element in the range (no matching x-values)

An equation for which the graph is a straight line.

The y-coordinate of a point where a graph crosses the y-axis.

An equation stating that two ratios or rates are equal.

Tells how many times the base is being multiplied by itself. Example: In 2⁴ it is 4.

Operations that undo each other, such as addition and subtraction.