Math Problem Statement

Nubraižytas funkcijos y = f(x) grafikas ir jo liestinė, einanti per tašką x0. Apskaičiuok f'(x0) reikšmę. Užrašyk ją dešimtaine trupmena.

Solution

The task here is to find the derivative f(x0)f'(x_0) at the point x0x_0 using the graph provided. This derivative corresponds to the slope of the tangent line drawn at x=x0x = x_0 on the curve y=f(x)y = f(x).

Here’s how to approach it:

  1. Identify the Point: From the graph, x0x_0 is marked at x=3x = -3.
  2. Determine the Tangent’s Slope: The slope of the tangent line at this point is the derivative f(x0)f'(x_0).
    • The tangent line is shown in blue and appears to have a negative slope.
  3. Calculate the Slope:
    • To determine the slope, pick two points on the tangent line. For example:
      • Point 1: Approximately at (5,1)(-5, -1)
      • Point 2: Approximately at (3,2)(-3, -2)
    • Using the slope formula m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}: m=2(1)3(5)=12=0.5m = \frac{-2 - (-1)}{-3 - (-5)} = \frac{-1}{2} = -0.5
    • Therefore, f(x0)=0.5f'(x_0) = -0.5.

Answer:

The value of f(x0)f'(x_0) in decimal form is: Atsakymas: 0.5\text{Atsakymas: } -0.5

Would you like further details on interpreting graphs for derivatives?

Further Related Questions

  1. How do you find the slope of a line between two points?
  2. What does the slope of a tangent line represent in calculus?
  3. How can you approximate slopes if points aren't clearly marked?
  4. How does a derivative relate to the function’s rate of change?
  5. What are the steps to find the derivative at a specific point on any graph?

Tip

When interpreting tangent lines on graphs, always check for clear points to estimate the slope accurately.

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Math Problem Analysis

Mathematical Concepts

Calculus
Derivatives
Tangent Slope

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)

Theorems

Derivative as the slope of the tangent

Suitable Grade Level

Grades 10-12