Math Problem Statement

Using the following graph of the function f, evaluate the limits (a) through (c): (a) Select the correct choice below and fill in the answer box within the choice for lim x→4 f(x). (b) lim x→−3⁺ f(x) = ? (c) lim x→−3⁻ f(x) = ?

Solution

Let's analyze and solve the limits based on the provided graph for each part (a) through (c):

  1. Part (a): limx4f(x)\lim_{{x \to 4}} f(x)

    • Observing the graph at x=4x = 4, we should look at the behavior of f(x)f(x) as xx approaches 4 from both the left and the right.
    • The values appear to approach a specific point from both sides. Based on the options provided, it seems that the correct choice should be identified based on what we see on the graph.
  2. Part (b): limx3+f(x)\lim_{{x \to -3^+}} f(x)

    • This denotes the right-hand limit as xx approaches -3 from the positive (right) side.
    • Observing the function's behavior from the right of x=3x = -3, we determine whether the function value approaches -5 or another value.
  3. Part (c): limx3f(x)\lim_{{x \to -3^-}} f(x)

    • This denotes the left-hand limit as xx approaches -3 from the negative (left) side.
    • Observing the function's behavior from the left of x=3x = -3, we determine whether there is a specific value for the limit.

Solutions

Let’s go through each part based on these observations from the graph:

  • (a) Select the correct choice for limx4f(x)\lim_{{x \to 4}} f(x) and input the answer within the choice.
  • (b) Write the value of limx3+f(x)\lim_{{x \to -3^+}} f(x).
  • (c) Write the value of limx3f(x)\lim_{{x \to -3^-}} f(x).

Would you like further guidance on interpreting the graph for these values? Let me know if you'd like a detailed explanation of each limit.


Here are some related questions to deepen your understanding:

  1. What is the difference between right-hand and left-hand limits?
  2. How do you determine if a two-sided limit exists based on a graph?
  3. What does it mean when a function has a jump discontinuity at a point?
  4. How can you determine if a function is continuous at a specific point?
  5. Why do limits approaching from different directions sometimes have different values?

Tip: Always check the graph's behavior on both sides of the point for a limit. A two-sided limit only exists if both one-sided limits are equal.

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Math Problem Analysis

Mathematical Concepts

Limits
Right-hand Limit
Left-hand Limit
Graph Interpretation

Formulas

lim x→c⁺ f(x)
lim x→c⁻ f(x)
lim x→c f(x)

Theorems

Limit Laws
Existence of Limits at a Point

Suitable Grade Level

Grades 11-12