Limits at Infinity of Algebraic Functions Quiz
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Questions and Answers

What can be said about the limit at negative infinity of logarithmic functions?

  • It exists and is equal to 0
  • It exists and is equal to a specific constant value
  • It does not exist (correct)
  • It exists and is equal to infinity

For polynomial functions with a leading coefficient 'a' that is greater than 0 and an odd degree 'n', what is the limit at positive infinity?

  • Zero
  • Negative infinity
  • Positive infinity (correct)
  • A specific constant value

When finding the limit at infinity of rational functions, what is the case if the degrees of the numerator and denominator are equal?

  • The limit exists and is a specific constant value (correct)
  • The limit is always infinity
  • The limit is always 0
  • The limit does not exist

What can be concluded about the limit at infinity of exponential functions with a base 'b' greater than 1?

<p>It is always infinity (C)</p> Signup and view all the answers

In the context of polynomial functions, what happens to the limit at negative infinity if 'a' is negative and 'n' is even?

<p>It is negative infinity (D)</p> Signup and view all the answers

When dealing with rational functions, what can be said about the limit if 'n' is greater than 'm' and 'a = b'?

<p>It exists and is equal to infinity (C)</p> Signup and view all the answers

For a polynomial function of degree n and leading coefficient a, what happens to the limits at infinity if a is less than 0 and n is even?

<p>The limit approaches negative infinity. (A)</p> Signup and view all the answers

In which scenario do rational functions differ from polynomial functions in terms of end behaviors?

<p>When the function has multiple branches. (C)</p> Signup and view all the answers

If n is odd in a polynomial function, how are the right and left ends of the graph positioned?

<p>In opposite directions. (C)</p> Signup and view all the answers

What happens to the limits at infinity of a rational function if the function has one branch?

<p>The limit approaches zero. (D)</p> Signup and view all the answers

In a rational function with one branch, what can be said about its end behavior compared to polynomial functions?

<p>They have different end behaviors. (D)</p> Signup and view all the answers

What is the end behavior of a rational function with one branch if it approaches zero at infinity?

<p>It approaches zero. (A)</p> Signup and view all the answers

As 𝑥 approaches positive or negative infinity, what happens to 𝑦 in relation to the 𝑥-axis?

<p>𝑦 becomes closer to the 𝑥-axis but will never intersect it. (B)</p> Signup and view all the answers

What is the horizontal asymptote of the function 𝑓(𝑥) as defined in the text?

<p>𝑓(𝑥) = 0 (D)</p> Signup and view all the answers

What is the limit as 𝑥 approaches positive or negative infinity of 𝑥^5?

<p>∞ (B)</p> Signup and view all the answers

What is the general first step to evaluate limits at infinity of rational functions?

<p>Divide first the numerator and denominator by the largest power of 𝑥 in the denominator. (C)</p> Signup and view all the answers

What is the limit as 𝑥 approaches ±∞ of a rational function where the denominator has a higher degree than the numerator?

<p>0 (C)</p> Signup and view all the answers

What should be done to prevent bad bacteria from multiplying each day in a human body?

<p>Maintain a healthy diet and lifestyle (C)</p> Signup and view all the answers

What value does the limit of a function approach as 𝑥 increases without bound?

<p>Infinity (A)</p> Signup and view all the answers

In evaluating the limit of algebraic functions, what are the end behaviors of polynomial functions dependent on?

<p>The degree of the polynomial (D)</p> Signup and view all the answers

How can one compute the limits of exponential, logarithmic, and trigonometric functions?

<p>Using tables of values and graphs of the functions (A)</p> Signup and view all the answers

What do limits at infinity of some algebraic and transcendental functions help illustrate?

<p>The end behavior of functions as 𝑥 tends to infinity/decreases to negative infinity (B)</p> Signup and view all the answers

What is key in computing the limits at infinity of algebraic and transcendental functions?

<p>Understanding the behavior of the function as 𝑥 approaches infinity (A)</p> Signup and view all the answers

What is the limit of $e^x$ as $x$ approaches $- ext{infinity}$?

<p>$0$ (D)</p> Signup and view all the answers

What is the limit of $\log_b(x)$ as $x$ approaches $\infty$, where $b > 1$?

<p>$\infty$ (A)</p> Signup and view all the answers

For polynomial functions of even degrees and an odd degree, what are the leading coefficients assumed to be when approaching $- ext{infinity}$?

<p>Positive (A)</p> Signup and view all the answers

What is the limit of $\ln(x)$ as $x$ approaches $\infty$?

<p>$\infty$ (C)</p> Signup and view all the answers

What happens to the limit of $\log_{b}(x)$ as $x$ approaches $-\infty$, where $0 < b < 1$?

<p>Does not exist (A)</p> Signup and view all the answers

In the context of limits at infinity, what happens to the limit of exponential functions as the exponent increases towards infinity?

<p>$\infty$ (B)</p> Signup and view all the answers

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