Quiz no. 1 Relations and Functions
Quiz by Arvin Gara
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- Q1
In mathematics, what is a function?
A sequence of numbers
A variable with no defined value
A mathematical operation
A set of ordered pairs
60s - Q2
Which of the following is NOT a way to represent a function?
Percentage
Table
Equation
Graph
60s - Q3
If f(x) = 2x - 1, what is the value of f(3)?
5
7
4
6
60s - Q4
Which relation is NOT a function?
{(3,-2), (5,-6), (7,7), (8,8)}
{(1,-5), (3,1), (-5,4), (4,-2)}
{(1,-5), (-1,6), (1,5), (6,-3)}
{(2,7), (3,7), (4,7), (5,8)}
30s - Q5
All of the x values or inputs are called what?
Relation
Range
Domain
Function
60s - Q6
All of the y values or outputs are called what?
Domain
Relation
Range
Function
60s - Q7
What is the range of the relation shown on the mapping diagram?
R:{3, 5, 8}
R:{3, 5, 8, 12}
R:{all real numbers}
R:{-7, 11}
60s - Q8
What domain value corresponds to the range value -2 in the given relation?
{(-1,2), (-2,4), (2,5), (0,-2), (2,0)}
-2
0
4
2
60s - Q9
A function that assigns each input to exactly one output is called:
None of the above
One-to-one function
Onto function
Many-to-one function
60s - Q10
Is the relation a function? Why.
Yes, because the x-value 11 has two y-values pair with it.
No, because each x-value has only one y-value paired with it.
No, because the x-value 11 has two y-values paired with it.
Yes, because each x-value has only one y-value paired with it.
60s - Q11
Is this mapping a function or not a function?
Function
Not a Function
60s - Q12
Is this mapping a function or not a function?
Function
Not a Function
60s - Q13
Determine if the following relation describes a function.
Not a Function
Function
60s - Q14
Determine if the following relation represents a function.
Not a Function
Function
60s - Q15
Is this graph a function or not a function?
Function
Not a Function
60s
