Quiz#1 - Functions and Rational Functions

What is a relation where each element in the domain is related to only one value in the range by rule/s?

• Function

• Range

• Relation

• Independent

A rational function is a ratio of __________ functions where the denominator must not be equal to zero.

• polynomial

• linear

• quadratic

• cubic

What is a root obtained in the process of solving an equation but after analyzing it turns out as incorrect?

• extraneous solution

• least common denominator

• rational expression

• quotient

This test is used to determine if a graph shows a function.

• Vertical Line Test

• Horizontal Line Test

• Oblique Line Test

• Slant Line Test

Which of the following statements is not true?

• All functions are relations.

• Not all relations are functions.

• All relations are functions.

• Some relations are functions.

Which of the following is not true about functions?

• Many-to-many correspondence is a function.

• One-to-one correspondence is a function.

• Many-to-one correspondence is a function.

• One-to-many correspondence is a function.

If a rational function has the degree of the numerator less than that of the denominator, horizontal asymptote is _____.

• slant

• zero

• one

• a/b

Which of the diagrams represents a relation only?

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Which of the following graphs shows a function?

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Which is an example of a rational function?

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