Math Problem Statement

Use simple fixed point iteration to locate the root of f(x)=-9x^2+1.7x+2.5 with initial values x=5 perform 6 iterations. Add a column for xi+1

Solution

To solve the equation f(x)=9x2+1.7x+2.5=0f(x) = -9x^2 + 1.7x + 2.5 = 0 using simple fixed-point iteration, we first rearrange it into the form x=g(x)x = g(x).

Rewriting the equation:

We can rewrite f(x)=9x2+1.7x+2.5=0f(x) = -9x^2 + 1.7x + 2.5 = 0 as: x=g(x)=1.7x+2.59xx = g(x) = \frac{1.7x + 2.5}{9x}

Fixed-point iteration:

Starting with x0=5x_0 = 5, we'll use the iterative formula: xn+1=g(xn)x_{n+1} = g(x_n) and compute the next values up to 6 iterations.

Iterations Table:

Iterationxnx_nxi+1x_{i+1}
05.00000.2444
10.24441.3253
21.32530.3985
30.39850.8860
40.88600.5024
50.50240.7418
60.7418-

After 6 iterations, the value of xx begins to stabilize. The method will continue to approach the root with further iterations.

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Math Problem Analysis

Mathematical Concepts

Fixed Point Iteration
Root Finding
Quadratic Equations

Formulas

f(x) = -9x^2 + 1.7x + 2.5
x = g(x) = (1.7x + 2.5) / 9x
x_(n+1) = g(x_n)

Theorems

Fixed Point Theorem

Suitable Grade Level

Undergraduate Level or Advanced High School (Grades 11-12)