Alg. 1: 3.1-3.3 Flashcard

Front

Which graph is NOT a function?

Back

Graph 1 is NOT a function because it fails the vertical line test.

Front

The graph represents a...

Back

Function: A relation where each input has exactly one output.

Front

The y-intercept is the point where a line crosses the ___________.

Back

y-axis: The vertical line on a graph where x=0.

Front

A graph that consists of points that are not connected is called a...?

Back

Discrete graph: A graph made up of distinct, separate points.

Front

On a graph, which axis shows the independent variable?

Back

x-axis: The horizontal axis where the independent variable is plotted.

Front

What is a function?

Back

A relation where each input has one and only one output.

Front

What does the term 'domain' refer to in a function?

Back

Domain: The set of all possible input values (x-values) for a function.

Front

What does the term 'range' refer to in a function?

Back

Range: The set of all possible output values (y-values) for a function.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line crosses the graph more than once, it is not a function.

Front

What is a continuous graph?

Back

Continuous graph: A graph that is unbroken and can be drawn without lifting the pencil.