
Understanding Rational Functions
Interactive Video
•
Mathematics, Science, Other
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a rational function?
A function that is always linear
A function that is a ratio of two polynomials
A function that is always quadratic
A function that is a sum of two polynomials
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't the denominator of a rational function be zero?
Because it would make the function linear
Because it would make the function constant
Because it would make the function undefined
Because it would make the function quadratic
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is a rational function similar to a rational number?
Both are always integers
Both are always positive
Both are always negative
Both are in the form of a ratio
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the expression P/Q, what must be true about Q?
Q must be greater than P
Q must be less than P
Q must be zero
Q must not be zero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a rational function?
x^3 + 5
(x^2 + 3)/(x^3 + 5)
x^2 + 3
x + 2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the numerator in the rational function (x^2 + 3)/(x^3 + 5)?
x^2 + 3
x^3 + 5
x + 5
x^2 + 5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't we predict the graph of a rational function easily?
Because it is always linear
Because it is always quadratic
Because it is always constant
Because it depends on the specific polynomials involved
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