Basic Algebra Terms I
An algebraic expression with two unlike terms
Binomial Expression
A letter or symbol used to represent a number
Variable
A number whose decimal form is nonterminating and nonrepeating. These numbers cannot be written in the form a/b, where a and b are integers (b cannot be zero).
Irrational Number
The set of x-coordinates of the set of points on a graph or in a given set of ordered pairs. The value that is the input in a function or relation.
Domain
A function with a constant rate of change and a straight line graph
Linear Function
A number multiplied by a variable
Coefficient
A number sentence that contains an equals symbol
A number expressible in the form a/b or –a/b for some fraction a/b.
Rational Number
The set of all possible outputs of a function
Range
A function of degree 2 which has a graph that "turns around" once, resembling an umbrella-like curve that faces either right-side-up or upside down. This graph is called a parabola
Quadratic Function
A quantity that does not change its value
Constant Term
The set of numbers ..., –3, –2, –1,0,1,2,3,...
Integers
The symbol √
Radical
The ratio of the vertical and horizontal changes between two points on a surface or a line
Slope
A nonlinear function in which the independent value is an exponent in the function, as in y = ab^x
Exponential Function
A mathematical phrase involving at least one variable and sometimes numbers and operation symbols
Expression
An algebraic expression with one term
Monomial Expression
The number underneath the root symbol
Radicand
The point (x, 0) where a line meets or crosses the x-axis
A vertical line that divides the parabola into two congruent halves.
Axis of Symmetry
A pair of numbers, (x, y), that indicate the position of a point on a Cartesian plane
Ordered Pair
An algebraic expression with three unlike terms
Trinomial Expression
True/False:
The product of two irrational numbers is always irrational.
False
The point (0, y) where a line meets or crosses the y-axis
y-intercept
A line that the curve of a graph approaches, but never reaches
Asymptote