Find the domain, horizontal asymptotes of a rational function

Find the domain, horizontal asymptotes of a rational function

Assessment

Interactive Video

Created by

Quizizz Content

Mathematics

11th Grade - University

Hard

The video tutorial explains how to find the domain, vertical and horizontal asymptotes, and intercepts of a function. It begins with setting the denominator to zero to find vertical asymptotes and discusses the comparison of exponents to determine horizontal asymptotes. The tutorial also covers finding X and Y intercepts by plugging in zero and concludes with a summary of the findings. The latter part of the transcript includes unrelated discussions about tasks and rosters.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in finding the vertical asymptotes of a function?

Set the numerator to zero

Find the derivative of the function

Set the denominator to zero

Evaluate the function at x = 0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you determine if a function has a horizontal asymptote at y = 0?

The function has no variables

The degree of the numerator is greater than the degree of the denominator

The degree of the numerator is less than the degree of the denominator

The degrees of the numerator and denominator are equal

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if the degrees of the numerator and denominator are equal?

There is no horizontal asymptote

The horizontal asymptote is the ratio of the leading coefficients

The horizontal asymptote is y = 0

The function has a vertical asymptote

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the x-intercepts of a function?

Set the denominator to zero

Set the numerator to zero

Plug in zero for y

Plug in zero for x

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are there no x-intercepts in this function?

The numerator is always zero

The function is undefined at x = 0

The function is a constant

The denominator is zero at x = 0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the domain of the function discussed in the video?

All negative numbers

All positive numbers

All real numbers except x = 0 and x = 2

All real numbers

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the horizontal asymptote of the function?

y = 2

y = 1

y = 0

There is no horizontal asymptote