GRADE 11 FEBRUARY 2024
MATHEMATICS INVESTIGATION TOTAL: 50
Name: ________________________________________________________________
Quadratic Number patterns
SECTION A: [25]
Consider the following number pattern:
−1; 2; 9; 20; …
Answer the following questions on the paper:
1. Determine the first and second difference of the pattern:
−1; 2; 9; 20; …
First difference: ___ ___ ___
Second difference: ___ ___ (5)
2. What do you notice about the second differences?
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
(1)
1
MATHEMATICS INVESTIGATION TOTAL: 50
Name: ________________________________________________________________
Quadratic Number patterns
SECTION A: [25]
Consider the following number pattern:
−1; 2; 9; 20; …
Answer the following questions on the paper:
1. Determine the first and second difference of the pattern:
−1; 2; 9; 20; …
First difference: ___ ___ ___
Second difference: ___ ___ (5)
2. What do you notice about the second differences?
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
(1)
1
