Math Problem Statement

Given a graph, calculate f(1), lim(x→0)f(x), lim(x→5+)f(x), and lim(x→5-)f(x).

Solution

Let’s analyze the graph to solve each part of the problem.

1. f(1)f(1)

At x=1x = 1, the graph shows that the filled dot (indicating the value of the function) is located at y=2y = 2. Thus, f(1)=2f(1) = 2.

2. limx0f(x)\lim_{x \to 0} f(x)

As xx approaches 0 from both sides, we observe that the graph approaches the point y=2y = 2. Thus, limx0f(x)=2\lim_{x \to 0} f(x) = 2.

3. limx5+f(x)\lim_{x \to 5^+} f(x)

This is the limit as xx approaches 5 from the right. As we approach x=5x = 5 from values greater than 5, the graph appears to approach y=3y = 3. Thus, limx5+f(x)=3\lim_{x \to 5^+} f(x) = 3.

4. limx5f(x)\lim_{x \to 5^-} f(x)

This is the limit as xx approaches 5 from the left. As we approach x=5x = 5 from values less than 5, the graph approaches y=1y = 1. Thus, limx5f(x)=1\lim_{x \to 5^-} f(x) = 1.

Summary of Answers:

  • f(1)=2f(1) = 2
  • limx0f(x)=2\lim_{x \to 0} f(x) = 2
  • limx5+f(x)=3\lim_{x \to 5^+} f(x) = 3
  • limx5f(x)=1\lim_{x \to 5^-} f(x) = 1

Would you like any further details or clarifications on these solutions?

Here are 5 related questions to explore:

  1. What is the value of f(5)f(5) based on the graph?
  2. Does the limit limx9f(x)\lim_{x \to 9} f(x) exist?
  3. What can you infer if limxaf(x)limxa+f(x)\lim_{x \to a^-} f(x) \neq \lim_{x \to a^+} f(x)?
  4. How would you define continuity at a point based on this graph?
  5. How can we use limits to describe behavior at discontinuities in the function?

Tip: When calculating limits, always look carefully at the graph’s behavior from both the left and right to check for any discrepancies or jumps at a point.

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Math Problem Analysis

Mathematical Concepts

Limits
Functions
Graph Analysis
Piecewise Functions

Formulas

-

Theorems

Limit Laws
Continuity Theorem

Suitable Grade Level

High School (Grades 11-12)