Math Problem Statement

Using the following graph of the function f, evaluate the limits (a) through (c).

Solution

Let's analyze the questions in the image one by one.

The image asks for evaluations of specific limits based on the graph of a function f(x)f(x).

(a) limx4f(x)\lim_{{x \to 4}} f(x)

To evaluate this limit, observe the behavior of f(x)f(x) as xx approaches 44 from both sides on the graph:

  • The limit value appears to be around 1-1, since as xx approaches 44, the yy-values of f(x)f(x) are getting closer to 1-1.

Thus, the answer is: limx4f(x)=1\lim_{{x \to 4}} f(x) = -1

(b) limx3+f(x)\lim_{{x \to -3^+}} f(x)

This asks for the right-hand limit of f(x)f(x) as xx approaches 3-3 from the positive (right) side.

  • Looking at the graph, as xx approaches 3-3 from the right, the yy-values approach 5-5.

So the answer is: limx3+f(x)=5\lim_{{x \to -3^+}} f(x) = -5

(c) limx3f(x)\lim_{{x \to -3^-}} f(x)

This asks for the left-hand limit of f(x)f(x) as xx approaches 3-3 from the negative (left) side.

  • Observing the graph, as xx approaches 3-3 from the left, the yy-values appear to approach 33.

Therefore, the answer is: limx3f(x)=3\lim_{{x \to -3^-}} f(x) = 3

Would you like further details or explanations on these limit evaluations?


Related Questions:

  1. How do we determine if a limit exists at a particular point?
  2. What is the difference between a left-hand limit and a right-hand limit?
  3. How do we find the limit of a function at a discontinuity?
  4. What methods can be used to estimate limits when no graph is provided?
  5. Why is the limit notation important in calculus?

Tip:

When evaluating limits from a graph, always check both sides of the point to see if they approach the same value. If not, the limit at that point does not exist.

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Math Problem Analysis

Mathematical Concepts

Limits
Right-hand limit
Left-hand limit
Graphical analysis

Formulas

Limit notation: \( \lim_{{x \to c}} f(x) \)
Right-hand limit: \( \lim_{{x \to c^+}} f(x) \)
Left-hand limit: \( \lim_{{x \to c^-}} f(x) \)

Theorems

Limit existence at a point

Suitable Grade Level

Grades 11-12