Summative Test in General Mathematics

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

In a relation, what do you call the set of x values or the input?

• Piecewise

• Range

• Domain

• Independent

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.

What is the range of the function shown by the diagram?

• R: {3, 2, 1}

• R: {c, d}

• R: {1, 2, 3, c, d}

• R: {all real numbers}

What is the domain of the function shown by the diagram?

• D: {2, 4, 6}

• D: {a, b}

• D: {2, 4, 6, a, b}

• D: {all real numbers}

Which of the following relations is/are function/s?

• 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 = {(2,9), (3,4), (9,2), (6,7)}

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 the name of his pet.

A person is earning Php350 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) = 350 + n

• S(n) = 350/n

• S(n) = 350n

• S(n) = 350 - n

Which of the following graphs represents a function?

• 
• 
• 
• 

Which of the following is not true about functions?

• Function is composed of two quantities where one depends on the other.

• One-to-one correspondence is a function.

• Many-to-one correspondence is a function.

• One-to-many correspondence is a function.