Elementary Calculus
Class Test 3 – Functions Name & ID:
Question 1
Write an equation to represent the function from the following table of values: [image]

A.y = -2x B.y = 2x C.y = x + 1 D.y = x + 2

Question 2
Write an equation to represent the function from the following table of values: [image]

A.y = x + 3 B.y = 3x C.y = 4x D.y = x – 3

Question 3
Which one of the following relations is not a function? [image]

A.A B.B C.C D.D

Question 4
A = {-3, -2, -1, 0, 1, 2, 3} f is a function from A to the set of whole numbers as defined in the following table: [image] What is the domain of f?

A. The set of Integers B. The set of Whole numbers

C. {-3, -2, -1, 0, 1, 2, 3} D. {0, 1, 4, 9}

Question 5
Which one of these graphs does not illustrate a function? [image]

A. A B. B C. C D. D

Question 6
Which one of the following is not a function?

A B

[image] [image]

C D

[image] [image]

A. not a function B. not a function C. not a function D. not a function

Question 7
Which relation is not a function?

A. F(x) = ?x B. F(x) = -?x C. F(x) = ±?x D. F(x) = ?x – 1

Question 8
The function f is defined on the real numbers by f(x) = 2 + x – x2 What is the value of f(-3)?

A. -10 B. -4 C. 8 D. 14

Question 9
[image]

A. [image] B. [image]

C. [image] D. [image]

Question 10
Which one of the following is not a function?

A B

[image] [image]

C D

[image] [image]