Barrett Wilson
12/13/2023 · Middle School
Trazar el gráfico de la función racional. \[ f(x)=\frac{2 x+2}{x+4} \] Comenzar trazando las asíntotas verticales y horizontales. Luego función.
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Step-by-step Solution
Find the vertical asymptotes of \( (2*x+2)/(x+4) \).
Function by following steps:
- step0: Find the vertical asymptotes:
\(y=\frac{2x+2}{x+4}\)
- step1: Evaluate the limit:
\(\lim _{x\rightarrow -4}\left(\frac{2x+2}{x+4}\right)\)
- step2: Evaluate the left-hand and the right-hand limits:
\(\begin{align}&\lim _{x\rightarrow -4^{-}}\left(\frac{2x+2}{x+4}\right)\\&\lim _{x\rightarrow -4^{+}}\left(\frac{2x+2}{x+4}\right)\end{align}\)
- step3: Evaluate the left-hand limit:
\(\begin{align}&+\infty\\&-\infty\end{align}\)
- step4: Limit does not exist:
\(\textrm{The limit does not exist}\)
- step5: \(x=-4\) is a vertical asymptote\(:\)
\(\begin{align}&x=-4\textrm{ }\textrm{is a vertical asymptote}\end{align}\)
- step6: List all vertical asymptotes of the function:
\(\begin{align}&x=-4\end{align}\)
Find the horizontal asymptotes of \( (2*x+2)/(x+4) \).
Function by following steps:
- step0: Find the horizontal asymptotes:
\(y=\frac{2x+2}{x+4}\)
- step1: Evaluate the limits \(\lim _{x\rightarrow +\infty}\left(y\right)\) and \(\lim _{x\rightarrow -\infty}\left(y\right):\)
\(\begin{align}&\lim _{x\rightarrow +\infty}\left(\frac{2x+2}{x+4}\right)\\&\lim _{x\rightarrow -\infty}\left(\frac{2x+2}{x+4}\right)\end{align}\)
- step2: Calculate:
\(\begin{align}&2\\&2\end{align}\)
- step3: The finite values are horizontal asymptotes:
\(\begin{align}&y=2\end{align}\)
La función racional dada es \( f(x)=\frac{2x+2}{x+4} \).
Las asíntotas verticales de la función son \( x=-4 \) y las asíntotas horizontales son \( y=2 \).
Ahora, podemos trazar el gráfico de la función racional comenzando por las asíntotas verticales y horizontales, y luego trazando la función en sí misma.
Quick Answer
The vertical asymptote is \( x=-4 \) and the horizontal asymptote is \( y=2 \).
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