xₙ₊₁ = f(xₙ): Mixed Review

Mathematics
GCSE Foundation
12 questions
~24 mins
1 views0 downloads

About This Worksheet

A worksheet covering the iterative process defined by xₙ₊₁ = f(xₙ), designed to reinforce procedural skills, reasoning, and real-world applications for GCSE Foundation students.

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xₙ₊₁ = f(xₙ): Mixed Review

Subject: MathematicsGrade: GCSE Foundation
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Untitled Worksheet

Grade GCSE Foundation
A

Practice Questions

Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the next term x₂ if x₁ = 3 and the iterative formula is xₙ₊₁ = 2xₙ + 1.
[2 marks]
2.
Given x₁ = 4 and xₙ₊₁ = xₙ² - 3, find x₂.
[2 marks]
3.
Construct an iterative sequence starting with x₁ = 1 and using xₙ₊₁ = xₙ + 2. Find x₄.
[3 marks]
4.
Plot the graph of y = 0.5x starting from x = 0 to x = 10. Use the grid to draw the points.
[3 marks]
5.
Identify the fixed point of the iterative function xₙ₊₁ = 3xₙ / (xₙ + 2).
[2 marks]
6.
If x₁ = 5 and xₙ₊₁ = xₙ - 1, what is x₃?
[2 marks]
7.
Solve the multi-step problem: Starting with x₁ = 2, apply xₙ₊₁ = 2xₙ + 4 for three iterations. What is x₄?
[4 marks]
8.
A population starts with 100 and increases each year according to xₙ₊₁ = 1.1xₙ. Calculate the population after 3 years.
[3 marks]
9.
Identify and correct the mistake in this iterative calculation: starting with x₁=2, x₂ = x₁ / 2 = 1, then x₃ = x₂ / 2 = 0.5.
[3 marks]
10.
For the function xₙ₊₁ = 5 - xₙ, find the fixed point and explain its significance.
[3 marks]
11.
Determine the behavior of the sequence starting with x₁=0 and applying xₙ₊₁ = xₙ² - 1. Will it converge or diverge?
[4 marks]
12.
Challenge: Find x₁ if the sequence converges to 3 using xₙ₊₁ = (xₙ + 2) / 2.
[3 marks]

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Details

Created
1/1/2026
Updated
1/1/2026
Type
worksheet