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Unit 0b

Functions

TermDefinition
Graph A drawing of something.
Grid Vertical and horizontal lines put together for graphing.
Plane A flat surface, especially one that goes on forever.
Coordinate A location defined by points on a grid or on a map.
Coordinate plane A plane that is marked with a grid and allows you to place points at certain coordinates.
Axis A line used as a reference point. On a coordinate plane there are two: the x-_______and the y-_______.
x-axis The axis (or line) that runs horizontal (side to side) on a coordinate plane.
y-axis The axis (or line) that runs vertical (up and down) on a coordinate plane.
origin The place where the x-axis and the y-axis meet.
ordered pair A point is defined by an x value and a y value. These are always listed in certain order (x, y).
Quadrant The four sections of a coordinate plane separated by the two axes.
Quadrant 1 Quadrant where x and y are positive. (+x, +y)
Quadrant 2 Quadrant where x is negative and y is positive. (-x, +y)
Quadrant 3 Quadrant where x and y are negative. (-x, -y)
Quadrant 4 Quadrant where x is positive and y is negative. (+x, -y)
Relation A set of x and y points that are paired together. Any set of ordered pairs.
Domain The x values of a relation. For the points (2, 3), (-3, 5), (-5, 3), the ______________ is [2, -3, -5].
Range The y values of a relation. For the points (2, 3), (-3, 5), (-5, 3), the __________ is [3, 5, 3].
Function A special type of relation where every x value only has one y value.
Independent variable In an equation, the _________________ variable is the one that does not depend on another value. In y = 2x – 5, “x” is the ________________ variable.
Dependent variable: In an equation, the ________________ variable is the one that depends on another value. In y = 2x – 5, “y” is the ____________ variable.
Continuous data Data that includes all points or values between them. These are values where it makes sense to have a decimal or fraction answer. On a graph it would be a line or curve.
Discrete data Data sets that contain only certain points or have breaks in the data. These are values where not all values are included or make sense. On a graph it would be separate points.
Parent function The simplest form of a type of function.
Created by: meminot