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Unit 1 Vocabulary

Terms in this set (21)

domain
The set of all x (input) values.
range
The set of all y (output) values
relation
A set of points
function
A relation in which every input has exactly one output.
discrete
A set of given data, scattered, and disconnected
continuous
Given intervals of data, connected, points in between
vertical line test
A test used to determine whether a relation is a function by checking if a vertical line touches 2 or more points on the graph of a relation
maximum
The highest point on a graph, helps find the range
minimum
The lowest point on a graph, helps find the range
function notation
An equation in the form of 'f(x)=' to show the output value of a function, f, for an input value x
expression
A mathematical phrase that contains operations, numbers, and/or variables.
equation
A mathematical sentence that contains an equals sign.
Parallel lines
Lines with the same slope, have no solution, and different y intercepts
DIXI ROYD
Acronym used to remember "Domain, Range, Input, Output, x, y, Independent, and Dependent
Ordered pair
A pair of numbers that can be used to locate a point on a coordinate plane
y-intercept
Where the graph touches or crosses the y-axis
all real numbers
Where the domain/range goes from negative infinity to positive infinity
perpendicular lines
Lines that intersect to form right angles, slopes are opposite reciprocals
One solution
a system of equations in which the equations have different slopes and intersect at one point
no solution
two lines that are parallel and never intersect are said to have this
Infinitely many solutions
when the system of equations have the same slope and same y-intercept.... or are the exact same line right on top of one another
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