Math Problem Statement

The graph below depicts a function g(x). Its one asymptote is indicated in red. Various limits for g(f(x)) are requested, with one value already provided: lim (x → 1^+) g(f(x)) = ∞.

Solution

The graph provided depicts a function g(x)g(x) with a vertical asymptote at x=2x = -2 (indicated by the red line). The curve suggests the following behaviors as xx approaches different values:

  1. As xx approaches negative infinity (xx \to -\infty):

    • The function appears to decrease without bound, suggesting g(x)g(x) tends towards negative infinity as xx \to -\infty.
    • Thus, limxg(x)=\lim_{x \to -\infty} g(x) = -\infty.
  2. As xx approaches positive infinity (x+x \to +\infty):

    • The function continues to rise without bound, indicating that g(x)g(x) approaches positive infinity.
    • Thus, limx+g(x)=+\lim_{x \to +\infty} g(x) = +\infty.
  3. As xx approaches -2 from the right (x2+x \to -2^+):

    • The function rises sharply, indicating that g(x)g(x) approaches positive infinity.
    • This is consistent with the provided answer, limx2+g(x)=+\lim_{x \to -2^+} g(x) = +\infty.
  4. As xx approaches -2 from the left (x2x \to -2^-):

    • The function falls rapidly, indicating that g(x)g(x) approaches negative infinity.
    • Therefore, limx2g(x)=\lim_{x \to -2^-} g(x) = -\infty.

Filling in the Blanks:

  1. limxg(f(x))=\lim_{x \to -\infty} g(f(x)) = -\infty
  2. limx+g(f(x))=+\lim_{x \to +\infty} g(f(x)) = +\infty
  3. limx1+g(f(x))=+\lim_{x \to 1^+} g(f(x)) = +\infty (This is already correct.)
  4. limx0g(f(x))\lim_{x \to 0} g(f(x)): Since xx is not close to the asymptote x=2x = -2, we would need more context or information about f(x)f(x) or the specific behavior of g(x)g(x) near x=0x = 0. This limit might involve further information about the function f(x)f(x) to make an accurate determination.

Would you like to explore more details on this or have any specific questions?

Relative Questions:

  1. How do vertical asymptotes affect the limits of functions?
  2. What happens to the limit of a function when approaching infinity?
  3. How can you determine the end behavior of a function from its graph?
  4. How do you find the limit of a composite function like g(f(x))g(f(x))?
  5. What methods can be used to find limits involving infinity?

Tip: Always check the behavior of a function near its asymptotes to correctly determine the limits as the function approaches these critical points.

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Math Problem Analysis

Mathematical Concepts

Limits
Asymptotes
End Behavior of Functions
Infinity

Formulas

Limit as x approaches infinity
Limit approaching from the left and right
Vertical asymptote behavior

Theorems

Limit Theorems
Behavior of Functions Near Asymptotes

Suitable Grade Level

Grades 11-12, College Calculus