vocab
Whole numbers and their opposites.
Integers
The multiplicative inverse of a number. The reciprocal of a/b is b/a.
Reciprocal
To get the variable alone on one side of an equation or inequality.
isolating the variable
An equation that states that two ratios are equal.
proportion
Numbers that are the same distance from zero on a number line, but in opposite directions.
Opposites
Terms that have the same variable(s) raised to the same power(s).
like terms
To perform the same operation on both sides of an equation to maintain equality.
balance the equation
4x+22
The distance a number is from zero on a number line.
Absolute value:
A term in an algebraic expression that contains a variable.
variable term
A mathematical sentence that compares two quantities using an inequality symbol.
inequality
simplify -(4-d)
-4+d
A number that can be written as a fraction, where the numerator and denominator are integers.
Rational number
operations that undo each other, such as addition and subtraction, or multiplication and division.
inverse operations
A comparison of two quantities by division.
-8
A mathematical phrase that contains variables, numbers, and operations.
Algebraic expression:
rational number
A ratio that compares two quantities with different units of measure.
Rate
Evaluate the following expression m = 5 n = -2
-2n + 3 – m
2