Algebra

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Terms in this set (...)

variables
x, y, or any letter that can represent a number that changes
constant
a number that has a set value (it is not next to a variable)
coefficient
a number that is directly next to a variable
A number multiplied by a variable.
Distribution
when a number outside parentheses multiples with all the terms inside the parentheses
combining like terms
when you simplify an algebraic expression
X
inputs of an equation, domain, independent variable
Y
outputs of an equation, range, dependent variable
inequality
A mathematical sentence that contains less than, greater than, less than or equal to, greater than or equal to, or not equal
greater than
has an open circle
less than
has an open circle
greater than or equal to
a value that is "at least" as big as another value
has a closed circle
less than or equal to
a value that is "at most" as big as another value
has a closed circle
Independent Variable
the cause of a situation, a variable whose values are independent of changes in the values of other variables (X)
dependent variable
The outcome factor; the variable that may change in response to manipulations of the independent variable. (Y)
relation
Any set of ordered pairs. Has an Independent and Dependent Variable
Function
a relation in which X has only one Y value. Can be tested on the coordinate plane with the vertical line test
Ordered Pair
A pair of numbers that can be used to locate a point on a coordinate plane
linear function
A function whose graph is a straight line.
Y = MX + B
answers to a quadratic
solution, roots, x-intercepts, zeros
system of linear equations
two linear functions that can have one, infinite or no solution
radical
same as taking the square root
axis of symmetry
A line that divides a plane figure or a graph into two congruent reflected halves
vertex
maximum or minimum of a quadratic