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# Algebra 2 unit 2

Relation A set of pairs input and output values. You can write a relation as a set of ordered pairs.
Domain Of a relation is the set of all imputs, or x-coordinates.
Range Of a relation is the set of all outputs or y-coordinates.
Mapping Diagram Domain is the x value. Range is the y value.
Function Is a relation in which each element of the domain is paired with exactly one element in the range.
Vertical Line Test Use to determine whether the relation has at least one element of the domain paired with more than one element of the range. If the vertical line passes through two or more points on the graph, then the relation is not a function.
Function Notation f(x) read as f of x
Linear Function A function whose graph is a line.
Linear Equation Represents a linear function y=2x+1
Dependant Variable Is the y variable because it depends on what you put in for x
Independant Variable Is the x variable
Y-Intercept The starting point when graphing, the b.
X-Intercept The horizontal point on a graph.
Standard Form of a Linear Equation Ax + By = C
Slope M = Slope = rise before run
Slope Intercept Form y = mx + b
Absolute Value Function y = [mx + b]
Vertex Of a function is a point where the function reaches a maximum or minimum.
Linear Inequality Is an inequality in two variables whose graph is a region of the coordinate plane that is bounded by a line.
Absolute Value Linear Inequalities y < or > [mx + b]
Steps to Find a Linear Equation on a Calculater
Composite Function Three functions with suitably chosen domains and codomains.
Inverse Relation Opposite of converse.
Created by: BGuice