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Summary Grade 10, Term 4: Comprehensive Guide to Non-Linear Number Patterns. R50,00   Add to cart
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Summary Grade 10, Term 4: Comprehensive Guide to Non-Linear Number Patterns.
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This document provides a thorough overview of non-linear number patterns commonly encountered in high school mathematics. It covers the essential types of non-linear sequences, including quadratic, cubic, geometric, exponential, and Fibonacci patterns. Each section includes a detailed explanation o...

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  • August 30, 2024
  • 6
  • 2024/2025
  • Summary

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Quadratic Patterns

● Pattern Structure: Sequence with a constant second difference.
● General Formula:
Tn = an² + bn + c
● Example: 3, 8, 15, 24, 35, ...
● Steps to Find the Formula:

1. First Differences:
-8-3=5
- 15 - 8 = 7
- 24 - 15 = 9
- 35 - 24 = 11

2. Second Differences (constant):
-7-5=2
-9-7=2
- 11 - 9 = 2

3. Since the second difference is constant, it’s a quadratic pattern.
○ Find a: a = (Second Difference) / 2 =
○ = 1.
○ A = 2ND DIFFERENCE ÷2

, 4. Set up equations using terms:
○ For T1 = 3
→ 1(1)² + b(1) + c = 3
→ 1 + b + c = 3.
→ b + c =2 ( EQUATION 1)

○ For T2 = 8:
→ 1(2)² + b(2) + c = 8
→ 4 + 2b + c = 8.
→ 2b +c =4 ( EQUATION 2)

○ Solve for b and c :
→ ALWAYS SUBTRACT EQUATION 1 FROM EQUATION 2
→ 2b + c =4
- b + c =2
—————
b =2
→ Substitute b=2 into equation 1 or 2 to find c
2(2)+c = 4
c=0
→b=2 and c = 0
→ Confirm this by Substituting
Tn = an^2 + bn + c

✔️
3= 1(1)^2 + 2(1)+0
3=3


5. Therefore the General Formula: Tn = 1n² + 2n + 0

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