Math Problem Statement

Let f be the function graphed below. If five subintervals of equal length are used, draw rectangles whose area represents a right Riemann sum approximation of ∫[1,6] f(x) dx. Determine the width of each subinterval.

Solution

The image you uploaded shows a graph of a function f(x)f(x) from x=1x = 1 to x=6x = 6, with five subintervals. The task requires you to approximate the integral 16f(x)dx\int_1^6 f(x) \, dx using a right Riemann sum.

Here's how we proceed:

  1. Number of Subintervals: 5 subintervals are specified.
  2. Width of Each Subinterval: The total length of the interval is 61=56 - 1 = 5, so the width of each subinterval is: Δx=55=1\Delta x = \frac{5}{5} = 1
  3. Right Riemann Sum: For a right Riemann sum, we use the function values at the right endpoints of each subinterval to form the rectangles.

From the graph, you can identify the function values at each right endpoint (i.e., at x=2,3,4,5,6x = 2, 3, 4, 5, 6).

The right Riemann sum formula is: S=i=15f(xi)ΔxS = \sum_{i=1}^5 f(x_i) \Delta x where x1=2,x2=3,x3=4,x4=5,x5=6x_1 = 2, x_2 = 3, x_3 = 4, x_4 = 5, x_5 = 6, and Δx=1\Delta x = 1.

Would you like me to calculate the values for you? Feel free to share the function values at these points, or if you want a more detailed walkthrough, let me know!

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Math Problem Analysis

Mathematical Concepts

Calculus
Definite Integrals
Riemann Sums

Formulas

Δx = (b - a) / n
S = Σ f(x_i) Δx

Theorems

Riemann Sum Approximation

Suitable Grade Level

Grades 11-12, College Calculus