WorksheetsPre-Test (Functions)
Total questions: 10
Worksheet time: 5mins
What do you call a relation where each element in the domain is related to only one value in the range by some rules?
Function
Range
Domain
Independent
Which of the following relations is a function?
x = {(1,2), (3,4), (1,7), (5,1)}
g = {(3,2), (2,1), (8,2), (5,7)}
h = {(4,1), (2,3), (2, 6), (7, 2)}
y = {(9,9), (3,4), (9,2), (6,7)}
In a relation, what do you call the set of x values or the input?
Piecewise
Range
Domain
Dependent
What is the range of the function shown by the diagram?
R: {3, 2, 1}
R: {a, b}
R: {3, 2, 1, a, b}
R: {all real numbers}
Which of the following tables represent a function?
Which of the following real-life relationships represent a function?
The rule which assigns to each person the name of his aunt.
The rule which assigns to each person the name of his father.
The rule which assigns to each cellular phone unit to its phone number.
The rule which assigns to each person a name of his pet.
Which of the following relations is NOT a function?
The rule which assigns a capital city to each province.
The rule which assigns a President to each country.
The rule which assigns religion to each person
The rule which assigns tourist spot to each province.
A person is earning ₱500.00 per day for doing a certain job. Which of the following expresses the total salary S as a function of the number n of days that the person works?
𝑆(𝑛) = 500 + 𝑛
𝑆(𝑛) = 500/n
𝑆(𝑛) = 500n
𝑆(𝑛) = 500 − 𝑛
Johnny was paid a fixed rate of ₱ 100 a day for working in a Computer Shop and an additional ₱5.00 for every typing job he made.
How much would he pay for a 5 typing job he made for a day?
₱55.00
₱175.50
₱125.00
₱170.00
Find the fare function f(x) where x represents the number of typing job he made for the day.
𝑓(𝑥) = 100 + 5x
𝑓(𝑥) = 100 − 5x
𝑓(𝑥) = 100x
𝑓(𝑥) = 100/5x
