# Function, Domain And Range, Vertical Line Test

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TAG614
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Quizzes Created: 2 | Total Attempts: 2,239
Questions: 8 | Attempts: 893

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First quiz

• 1.

### Is the relationship a function?

• A.

Yes

• B.

No

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)}

B. {(0,-1),(1,-2),(2,2),(3,0),(1,1)}
• 3.

### Is this a function?

• A.

Yes

• B.

No

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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• 4.

### Which graph represents a function?

• A.

Graph 1

• B.

Graph 2

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

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

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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• 7.

### F(x) = x^3-xEvaluate f(4).

• A.

48

• B.

60

• C.

40

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

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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• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• Jan 26, 2011
Quiz Created by
TAG614

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