User the function f(x) = 3"-5 - 4 to answer the following: (a) Determine the equation of the asymptote of f(x). y = -4 (b) Determine the domain of f(x) in interval notation. (-0,00) (c) Determine the range of f(x) in interval notation.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Using the function \( f(x) = 3^{x-5} - 4 \) to answer the following questions:**

(a) **Determine the equation of the asymptote of \( f(x) \):**

\[
y = -4
\]

(b) **Determine the domain of \( f(x) \) in interval notation:**

\[
(-\infty, \infty)
\]

(c) **Determine the range of \( f(x) \) in interval notation:**

\[
(-4, \infty)
\]
Transcribed Image Text:**Using the function \( f(x) = 3^{x-5} - 4 \) to answer the following questions:** (a) **Determine the equation of the asymptote of \( f(x) \):** \[ y = -4 \] (b) **Determine the domain of \( f(x) \) in interval notation:** \[ (-\infty, \infty) \] (c) **Determine the range of \( f(x) \) in interval notation:** \[ (-4, \infty) \]
Expert Solution
Step 1

(a)

The given function fx=3x-5-4 is an exponential function.

It is known that, the exponential function generally has no vertical asymptotes. 

Note that, the horizontal asymptote of the function y=f(x) is the line y=L, if either limxfx=L or limx-fx=L.

Obtain the value of limxfx=L.

limxfx=limx3x-5-4=limx3x-5-limx4=-4=

Obtain the value of limx-fx=L.

limx-fx=limx-3x-5-4=limx-3x-5-limx-4=0-4=-4

Therefore, the horizontal asymptote of the given function is y=-4 

 

 

 

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