Function Review Alg1

Front

What does it mean to find f(2)?

Back

Let x = 2.

Front

Is the relation a function?

Back

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

Front

What is the slope of a horizontal line?

Back

0.

Front

What is the domain of the function represented by the graph of a toy rocket's flight?

Back

0 ≤ x ≤ 8.

Front

True or False: A function maps every input to every output.

Back

FALSE.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the range of a function?

Back

The set of all possible output values.

Front

What does it mean if a function is linear?

Back

It can be graphed as a straight line.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you determine if a relation is a function using a graph?

Back

Use the vertical line test; if a vertical line crosses the graph more than once, it is not a function.