Write an equation to represent the function from

Class Test 3 - Functions Name & ID:

Question 1

Write an equation to represent the function from the following table of values: 

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: 

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? 

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:                           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? 

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

Question 6

Which one of the following is not a function?

A B

 

 

C D

 

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

 

A.  B. 

C.  D. 

Question 10

Which one of the following is not a function?

A B

C D