
Initial Test - Functions and Non-Functions
Authored by mutmainah siti
Mathematics
11th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following relations is a function?
Every student → height
Every student → their parent's name
Every student → student ID and attendance number at the same time
Every student → hobby
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the set A = {1, 2, 3} and B = {a, b, c}. The relation R = {(1,a), (2,b), (3,c)}. Is R a function?
Yes, because every member of A is paired with exactly one member of B
No, because there are members of A paired with more than one
No, because there are members of B paired with more than one
No, because A and B are not the same size
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The relation student → their date of birth is included in ...
Function, because every student has exactly one date of birth
Function, because every student can have more than one date of birth
Not a function, because many students have the same date of birth
Not a function, because a student may not have a date of birth
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arrow diagram: A = {2, 3, 4}, B = {4, 9, 16} with the rule f(x) = x². The correct pairs are ...
(2,4), (3,9), (4,16)
(2,3), (3,4), (4,5)
(2,9), (3,16), (4,4)
(2,16), (3,9), (4,4)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From the following graph (for example, a parabola y = x²), is the relationship x → y a function?
Yes, because every value of x has exactly one value of y
No, because there are x values paired with two y values
No, because y can be negative
Yes, because the parabola graph is U-shaped
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The relation 'mother → her biological child' is included in ...
Function, because every mother has exactly one child
Function, because every mother can have many children
Not a function, because one mother can have more than one child
Not a function, because not everyone has children
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The relation 'motor vehicle → its license plate' is included in ...
Function, because every vehicle has a unique license plate
Not a function, because one vehicle can have many license plates
Not a function, because there are vehicles with the same plate
Function, because a vehicle may not have a plate
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