Algebra I Glossary

the math symbol (FIX) , used to denote the process of taking a root of a quantity

an equation that contains a variable within a radical term

a quantity that contains a term with a radical, as in (ADD)

the number under the radical symbol

a way of describing the exponent in exponential notation. We can say the base is "raised to the power" of the exponent.  For example we read x5 as “x raised to the 5th power.”

unable to be predicted with certainty

the set of all possible outputs of a function

a mathematical way of relating two quantities, which usually are measured in different units

the constant in a proportional function equation; it describes the ratio or proportional relationship of the independent and dependent variables—also called the constant of variation or the constant of proportionality

an equation that contains one or more rational expressions

a fraction with a polynomial in the numerator and/or denominator

numbers that can be written as a ratio of integers (that is, as (ADD)  where p and q are both integers and q ? 0)

a half-line beginning at one point and continuing to infinity

the set of numbers that includes both rational numbers and irrational numbers.

a number related to another number in such a way that when they are multiplied together their product is 1.  For example, the reciprocal of 7 is (ADD)

the relationship between variables that change together

numbers whose decimal parts repeat a pattern of one or more digits, these are all rational numbers

restoring a random situation back to its original state after performing an action

a triangle with one right angle

vertical change between two points

any number x multiplied by itself a specific number of times to produce another number, such that in xn = y, x is the nth root of y – for example, because 23 = 8, 2 is the 3rd (or cube) root of 8

any number that makes the equation true when the variable is equal to that number. That is, a solution of the equation.

the x-intercepts of the parabola or the solution of the equation

horizontal change between two points