Final Exam Algebra

The relation {(0, 2), (1, 3), (2, 4), (0, 5)} is a function?

• True

• False

State the domain of the relation {(0, –2), (1, 4), (3, 5), (0, –4)}.

• {–2, 0, 1, 4, 5}

• {0, 1, 3}

• {– 2, 4, 5}

• none of the above

For which quadrant are the abscissas negative and the ordinates positive?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Which of following could not be a function rule for f(x) if f(3) = 5?

• f(x) = | x + 2 |

• f(x) = x² – 4

• f(x) = 2x – 1

• All of the above could be function rules for f(x).

For which quadrant(s) is the first coordinate positive?

• Quadrant IV

• Quadrant III

• Quadrant II

Which of the following statements imply that the relation described is a function? List all correct answers.

• No two ordered pairs have the same first coordinate.

• No two ordered pairs have the same second coordinate.

• No two ordered pairs are the same.

• If the second coordinates of any ordered pairs are the same, then the first coordinates are the same.

Which set represents the Domain in the figure?

• Input

• Output

Which set represents the Range in the figure?

• Input

• Output

Which graph represents a function?

• y=|x|-2

• x= |y|+1

Is a set of order pairs

• Domain

• A relation

• Range

• A function