Math Problem Statement

Which statement best describes f'(2)?

Solution

Let's analyze the graph and the questions step by step.

Graph Interpretation:

The graph of the function f(x)f(x) consists of several line segments, some of which contain open and closed points. The points of interest here include:

  • f(1)=1f(1) = 1
  • f(2)=2f(2) = 2 (open circle at (2,1)(2, 1), indicating f(2)f(2) is not defined)
  • f(3)=1f(3) = 1
  • f(4)=1f(4) = -1

First Question: f(2)f'(2)

To describe f(2)f'(2), the derivative represents the slope of the tangent line to the curve at x=2x = 2. However, since there is an open point at x=2x = 2, f(2)f(2) is not defined, and we can't calculate a tangent line slope. Therefore:

  • f(2)f'(2) does not exist.

Second Question: f(271100)f'( \frac{271}{100})

The point 271100=2.71\frac{271}{100} = 2.71 is located between x=2x = 2 and x=3x = 3, where the function is decreasing linearly. We can calculate the slope of this segment.

The slope between points (2,1)(2, 1) and (3,1)(3, 1) is: slope=1132=0\text{slope} = \frac{1 - 1}{3 - 2} = 0 So:

  • f(271100)=0f'( \frac{271}{100}) = 0.

Third Question: Derivative Definition Limit

We are given the limit expression for the derivative: limh0f(271100+h)f(271100)h\lim_{h \to 0} \frac{f\left( \frac{271}{100} + h \right) - f\left( \frac{271}{100} \right)}{h} Since we have already calculated that f(271100)=0f'\left( \frac{271}{100} \right) = 0, this limit evaluates to:

  • 00.

Let me know if you'd like further details or have any questions!


Here are 5 related questions you can explore:

  1. What is the value of f(1)f'(1)?
  2. What happens to the derivative at x=3x = 3?
  3. Can the derivative exist at a point where f(x)f(x) is not continuous?
  4. What is the geometric meaning of the derivative on a linear section of a graph?
  5. How does the derivative behave at a corner or cusp?

Tip: A function can have a discontinuity, but this means its derivative may not exist at that point (like at x=2x = 2 here).

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Math Problem Analysis

Mathematical Concepts

Calculus
Derivatives
Graph Analysis

Formulas

Definition of derivative using limits
Slope formula for a linear function

Theorems

Existence of derivatives at open points and discontinuities

Suitable Grade Level

Grades 11-12