Graphs, Functions, and Tables

A coordinate plane is a plane containing a horizontal number line, the x-axis, and a vertical number line, the y-axis

The coordinates of a point are given by an ordered pair. An ordered pair is a pair of numbers that can be used to locate a point on a coordinate plane

To plot an equation on graph, find the ordered pairs and plot them on a graph to form a line

A function operates according to a rule to produce exactly one output value for each input value

The input is the value substituted into the function. The output is the value that results from the substitution of a given input into the function

The domain is the set of all possible input values, and the range is the set of all possible output values

In a function, one value of x (input) cannot have more than one corresponding value of y (output)

For more than one value of x (input), the function may have the same value of y (output)

Tables and graphs can be used to generate different representations of data

Plot the ordered pairs on the graph by moving ‘x’ units left/right and ‘y’ units up/down on a graph

Look for a pattern in the ordered pairs to find the equation