Math Problem Statement

Use the graph to evaluate the limit lim_{x→0} f(x).

Solution

From the uploaded image, we are tasked to evaluate the limit of f(x)f(x) as x0x \to 0 using the graph.


Step-by-step solution:

  1. Observing the graph around x=0x = 0:

    • As xx approaches 00 from the left (x0x \to 0^-), f(x)f(x) appears to approach y=1y = 1.
    • Similarly, as xx approaches 00 from the right (x0+x \to 0^+), f(x)f(x) also approaches y=1y = 1.
  2. Checking for continuity at x=0x = 0:

    • Although there is a hole at x=0x = 0 (indicating f(0)f(0) is undefined), the limit depends only on the values of f(x)f(x) as xx approaches 00, not the actual value of f(0)f(0).
  3. Conclusion:

    • Since f(x)1f(x) \to 1 from both sides of x=0x = 0, we conclude that:

limx0f(x)=1.\lim_{x \to 0} f(x) = 1.


Would you like a deeper explanation or have additional questions?

Five Related Questions:

  1. What is the formal definition of a limit, and how does it apply here?
  2. How do left-hand and right-hand limits help determine overall limits?
  3. Why doesn't the hole at x=0x = 0 affect the limit?
  4. Can a function have a limit at a point where it is not defined?
  5. What is the difference between continuity and having a limit?

Tip:

To analyze limits graphically, always look for the behavior of the function on both sides of the target xx-value, and ensure left-hand and right-hand limits match!

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Math Problem Analysis

Mathematical Concepts

Limits
Graphical Analysis

Formulas

Limit formula lim_{x→c} f(x) = L

Theorems

Limit Definition
Left-hand and Right-hand Limits

Suitable Grade Level

Grades 10-12