Functions

Front

Is the relation a function? Why?

Back

No, because the x-value 11 has two y-values pair with it.

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

Is this mapping a function or not a function?

Back

Not a Function.

Front

Is this graph a function or not a function?

Back

Not a Function.

Front

f(x)=2x+1. If f(x)=4, what is the value of x?

Back

3/2.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the vertical line test?

Back

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

Front

What are independent and dependent variables?

Back

Independent variable is the input (x), dependent variable is the output (y).

Front

What is a linear function?

Back

A function that graphs to a straight line, typically in the form f(x) = mx + b.

Front

What does the slope of a function represent?

Back

The rate of change of the function; it indicates how steep the line is.