Question
upstudy study bank question image url

Graph all vertical and horizontal asymptotes of the rational function. \[ f(x)=\frac{-10}{-x-5} \]

Ask by Rogers Williams. in the United States
Nov 30,2024

Upstudy AI Solution

Tutor-Verified Answer

Answer

The vertical asymptote is at \( x=-5 \) and the horizontal asymptote is at \( f(x)=0 \).

Solution

Find the vertical asymptotes of the function \( f(x)=-\frac{10}{-x-5} \). Function by following steps: - step0: Find the vertical asymptotes: \(f\left(x\right)=\frac{10}{x+5}\) - step1: Evaluate the limit: \(\lim _{x\rightarrow -5}\left(\frac{10}{x+5}\right)\) - step2: Evaluate the left-hand and the right-hand limits: \(\begin{align}&\lim _{x\rightarrow -5^{-}}\left(\frac{10}{x+5}\right)\\&\lim _{x\rightarrow -5^{+}}\left(\frac{10}{x+5}\right)\end{align}\) - step3: Evaluate the left-hand limit: \(\begin{align}&-\infty\\&+\infty\end{align}\) - step4: Limit does not exist: \(\textrm{The limit does not exist}\) - step5: \(x=-5\) is a vertical asymptote\(:\) \(\begin{align}&x=-5\textrm{ }\textrm{is a vertical asymptote}\end{align}\) - step6: List all vertical asymptotes of the function: \(\begin{align}&x=-5\end{align}\) Find the horizontal asymptotes of the function \( f(x)=-\frac{10}{-x-5} \). Function by following steps: - step0: Find the horizontal asymptotes: \(f\left(x\right)=\frac{10}{x+5}\) - step1: Evaluate the limits \(\lim _{x\rightarrow +\infty}\left(f\left(x\right)\right)\) and \(\lim _{x\rightarrow -\infty}\left(f\left(x\right)\right):\) \(\begin{align}&\lim _{x\rightarrow +\infty}\left(\frac{10}{x+5}\right)\\&\lim _{x\rightarrow -\infty}\left(\frac{10}{x+5}\right)\end{align}\) - step2: Calculate: \(\begin{align}&0\\&0\end{align}\) - step3: The finite values are horizontal asymptotes: \(\begin{align}&f\left(x\right)=0\end{align}\) The vertical asymptote of the rational function \( f(x)=-\frac{10}{-x-5} \) is at \( x=-5 \), and the horizontal asymptote is at \( f(x)=0 \).

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

Extra Insights

To find the vertical and horizontal asymptotes of the function \( f(x)=\frac{-10}{-x-5} \), let's start with the vertical asymptote. The vertical asymptote occurs where the denominator is equal to zero. Setting the denominator \(-x - 5 = 0\), we solve for \(x\): \[ -x = 5 \implies x = -5. \] So, there is a vertical asymptote at \(x = -5\). Next, we look for the horizontal asymptote. For rational functions, horizontal asymptotes are determined by the degrees of the numerator and denominator. In this case, both the numerator and the denominator are constant degrees (degree 0). Therefore, the horizontal asymptote is determined by the coefficients of the leading terms. As \(x\) approaches infinity, the function approaches \[ y = 0 \text{ (since the degree of the denominator is higher)}. \] Thus, the horizontal asymptote is \(y = 0\). In summary, the function has a vertical asymptote at \(x = -5\) and a horizontal asymptote at \(y = 0\).

Related Questions

Latest Pre Calculus Questions

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy