# Functions - Using the Veritical Line Test and Mapping Diagrams

## Free Algebra Worksheet - Functions - Using the Veritical Line Test and Mapping Diagrams

Lesson:
8. To determine if relations are functions by applying mapping diagrams and the vertical line test.

Subject:
Algebra

Description:

This free algebra worksheet contains problems on functions and relations. Students must use mapping diagrams and the vertical line test to determine if a relation is a function. Students must also graph functions using a table and set of points. Coordinate planes are included for graphs.

# of Problems:   15

# of Pages:   6

### Sample Problems from Worksheet

(Worksheet pictures and diagrams not shown)

Is each relation a function? Use a mapping diagram. Explain your answer.

1. {(4, 7), (9, 11), (4, 6), (10, 2)}

Identify which of the following graphs are NOT functions.

Answer(s): ___________________________. (there may be more than one!)

Is each relation a function? Use the vertical line test. Explain your answer.

4. {(2, 5), (-3, 5), (0, 5), (3, 5)}

6. The function to the right is called:

A. a quadratic function
B. a V function
C. an absolute value function
D. a linear function Graph each equation using a table and a graph.

9. f(x) = –2x – 1