THK M5 QUIZ 2.3

Multiple Choice

Which of the following relations is not a function?

• R = {(1, 2), (3, 4), (2, 1), (5, 1)}

• R = {(1, 2), (1, 4), (3, 1), (5, 1)}

• R = {(1, 2), (3, 4), (2, 1), (5, 2)}

• R = {(2, 1), (1, 4), (3, 1), (5, 1)}

Multiple Choice

Which of the following relations is not a function?

Multiple Choice

The set of ordered pairs below is a function.

{(0, 5), (3, 3), (6, 7), (4, 2), (x, 9)}

Which of the following could be the value of x in the fifth ordered pair of the function?

• x = 0, 2, 5

• x = 2, 3, 9

• x = 5, 6, 7

• x = 1, 8, 9

Multiple Choice

What is the equation of a line with the following points?

• y = x – 5

• y = 5x + 3

• y = – 5x + 3

• y = 10x + 14

Multiple Choice

Let f = {(1, –3), (2, 0), (0, –6), (–1, –9)} be a function defined by f(x) = ax + b, for some integers a, b. What are the values of a and b?

• a = –3; b = 6

• a = –6; b = 3

• a = 3; b = –6

• a = 6; b = –3

Multiple Choice

The domain and range of the function f is defined by:

f = {(x + 1, x + 5): x ∈ (0, 1, 2, 3, 4, 5)}

• Domain = {2, 3, 4, 5, 6}; Range = {6, 7, 8, 9, 10}

• Domain = ℝ; Range = ℝ

• Domain = {1, 2, 3, 4, 5, 6}; Range = {5, 6, 7, 8, 9, 10}

• Domain = {1, 2, 3, 4, 5}; Range = {5, 6, 7, 8, 9}

Multiple Choice

Find the values of x and y, if (2x − 3, y + 1) = (x + 5, 7).

• (6, 8)

• (2, 8)

• (8, 6)

• (8⁄3, 6)