Which does NOT represent a function from A to B?

{(0,-1),(1,-2),(2,2),(3,0),(1,1)}

Function, Domain And Range, Vertical Line Test

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| By TAG614

TAG614

Community Contributor

Quizzes Created: 2 | Total Attempts: 2,302

Questions: 8 | Attempts: 909 | Updated: Mar 22, 2023

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Questions and Answers

1.

Is the relationship a function?
- A.
  
  Yes
- B.
  
  No
Correct Answer
A. Yes

Explanation
The relationship is a function because for every input, there is only one corresponding output.

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2.

Which does NOT represent a function from A to B?
- A.
  
  {(0,1),(1,-2),(2,0),(3,0)}
- B.
  
  {(0,-1),(1,-2),(2,2),(3,0),(1,1)}
- C.
  
  {(0,0),(1,0),(2,0),(3,0)}
Correct Answer
B. {(0,-1),(1,-2),(2,2),(3,0),(1,1)}
3.

Is this a function?
- A.
  
  Yes
- B.
  
  No
Correct Answer
B. No

Explanation
The given question asks if something is a function. The answer provided is "No". This means that the thing in question is not a function.

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1
0
4.

Which graph represents a function?
- A.
  
  Graph 1
- B.
  
  Graph 2
Correct Answer
B. GrapH 2

Explanation
A graph represents a function if each input value (x-coordinate) corresponds to exactly one output value (y-coordinate). In Graph 2, for every x-value, there is only one y-value associated with it, satisfying the definition of a function. However, in Graph 1, for some x-values, there are multiple y-values, which violates the definition of a function. Therefore, Graph 2 represents a function while Graph 1 does not.

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5.

F(x) = 2x+5Evaluate f(3).
- A.
  
  10
- B.
  
  11
- C.
  
  12
Correct Answer
B. 11

Explanation
To evaluate f(3), we substitute 3 into the equation f(x) = 2x + 5. This gives us f(3) = 2(3) + 5 = 6 + 5 = 11. Therefore, the correct answer is 11.

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6.

F(x) = 4x^2Evaluate f(5).
- A.
  
  100
- B.
  
  400
- C.
  
  81
Correct Answer
A. 100

Explanation
To evaluate f(5), we substitute 5 into the function f(x) = 4x^2. Therefore, f(5) = 4(5)^2 = 4(25) = 100.

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1
1
7.

F(x) = x^3-xEvaluate f(4).
- A.
  
  48
- B.
  
  60
- C.
  
  40
Correct Answer
B. 60

Explanation
To find the value of f(4), we substitute 4 into the function f(x) = x^3 - x. Therefore, f(4) = 4^3 - 4 = 64 - 4 = 60.

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8.

F(x) = x^2 – 5x + 4Evaluate f(8).
- A.
  
  20
- B.
  
  24
- C.
  
  28
Correct Answer
C. 28

Explanation
To evaluate f(8), we substitute x=8 into the given function f(x). So, f(8) = 8^2 - 5(8) + 4 = 64 - 40 + 4 = 28. Therefore, the correct answer is 28.

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0
0

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Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Jan 26, 2011

Quiz Created by
TAG614

Function, Domain And Range, Vertical Line Test

Is the relationship a function?

Which does NOT represent a function from A to B?

Is this a function?

Which graph represents a function?

F(x) = 2x+5Evaluate f(3).

F(x) = 4x^2Evaluate f(5).

F(x) = x^3-xEvaluate f(4).

F(x) = x^2 – 5x + 4Evaluate f(8).