Math Problem Statement

Consider the function f(x) = (1/11)x + 20. Let x_0 = 0 and let x_n = f(x_{n-1}) for n ≥ 2. Find x_1, x_2, x_3, x_4, x_5.

Solution

It seems like you're working on a recursive function problem with an initial condition and a function definition. The problem provides a function f(x)=111x+20f(x) = \frac{1}{11}x + 20, and you're asked to compute values for x1,x2,x3,x4,x5x_1, x_2, x_3, x_4, x_5, with the recursive relation xn=f(xn1)x_n = f(x_{n-1}) starting with x0=0x_0 = 0.

Let's go ahead and calculate each of the values:

  1. Start with x0=0x_0 = 0.
  2. Compute x1=f(x0)x_1 = f(x_0).
  3. Use the result to compute x2=f(x1)x_2 = f(x_1), and so on until x5x_5.

I'll go ahead and compute the values now. Function definition def f(x): return (1 / 11) * x + 20

Initial value

x_0 = 0

Compute x1 to x5 using the recursive relation

x_values = [x_0] for n in range(1, 6): x_values.append(f(x_values[-1]))

Round the results to five decimal places

x_values_rounded = [round(x, 5) for x in x_values] x_values_roundedThe computed values for x1,x2,x3,x4,x5x_1, x_2, x_3, x_4, x_5 are:

  • x1=20.00000x_1 = 20.00000
  • x2=21.81818x_2 = 21.81818
  • x3=21.98347x_3 = 21.98347
  • x4=21.99850x_4 = 21.99850
  • x5=21.99986x_5 = 21.99986

As you can observe, the values are approaching 22 as nn increases.

Conjecture:

As nn \to \infty, the value of xnx_n approaches 22.

Would you like a deeper explanation of the process or further assistance with this problem? Here are some related questions you might find interesting:

  1. What happens if we change the function f(x)f(x)?
  2. How would the result change if the initial value x0x_0 were different?
  3. Can this method be used for other types of recursive sequences?
  4. What is the significance of the limiting value 22 in this context?
  5. How does the function f(x)f(x) affect the convergence of the sequence?

Tip: For recursive functions like this, you can often analyze the behavior of the sequence by identifying fixed points where f(x)=xf(x) = x.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Recursive sequences
Linear functions
Fixed point convergence

Formulas

f(x) = (1/11)x + 20
x_n = f(x_{n-1})

Theorems

Fixed-point theorem

Suitable Grade Level

Grades 9-12