Functions & Function Notation

Front

Is the following graph a function? Explain.

Back

Yes, because no x-value repeats.

Front

Is this graph a function or not a function?

Back

Not a Function

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

Given h(x) = 5 - 9x, find h(8).

Back

h(8) = -67.

Front

f(x) is the same thing as ______.

Back

y.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is function notation?

Back

A way to represent functions using symbols like f(x).

Front

What does the domain of a function represent?

Back

The set of all possible input values (x-values).

Front

What does the range of a function represent?

Back

The set of all possible output values (y-values).

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.