Math Problem Statement

Find the horizontal and vertical asymptotes of the graph of the function f(x) = 6 + 7 / (x - 7).

Solution

To find the horizontal and vertical asymptotes of the given function:

f(x)=6+7x7f(x) = 6 + \frac{7}{x-7}


1. Horizontal Asymptote

  • The horizontal asymptote describes the behavior of f(x)f(x) as xx \to \infty or xx \to -\infty.

  • For the given function: f(x)=6+7x7f(x) = 6 + \frac{7}{x-7} As xx \to \infty or xx \to -\infty, the fraction 7x70\frac{7}{x-7} \to 0 because the denominator grows unbounded.

    Thus: y=6y = 6 is the horizontal asymptote.


2. Vertical Asymptote

  • The vertical asymptote occurs where the denominator of the fraction equals zero, as the function is undefined there.

    From the term 7x7\frac{7}{x-7}, set the denominator x7=0x-7 = 0: x=7x = 7

    This is the vertical asymptote.


Final Answers:

  • Horizontal Asymptote: y=6y = 6
  • Vertical Asymptote: x=7x = 7

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Related Questions:

  1. What are the asymptotes for the function f(x)=x+2x3f(x) = \frac{x+2}{x-3}?
  2. How do you find horizontal asymptotes for rational functions in general?
  3. What happens when there are no horizontal asymptotes?
  4. Can a function have more than one vertical asymptote?
  5. How can you graph a function with both vertical and horizontal asymptotes?

Tip:

To determine horizontal asymptotes, analyze the behavior of f(x)f(x) as xx \to \infty or xx \to -\infty.

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Math Problem Analysis

Mathematical Concepts

Algebra
Asymptotes
Rational Functions

Formulas

Horizontal asymptote: limit of f(x) as x approaches infinity or negative infinity
Vertical asymptote: solve where the denominator is zero

Theorems

Limits of rational functions at infinity

Suitable Grade Level

Grades 10-12