Foundation
Simple quadratic and cubic sequences
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Lesson details
Key learning points
- In this lesson, we will investigate how terms change when a sequence is quadratic. In other words, it is of the form ax² + bx + c. We will also investigate cubic sequences.
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3 Questions
Q1.
What are the first five triangular numbers?
A
B
D
Q2.
What number should replace a in the Fibonacci-style sequence 1, 1, 2, 3, 5, a, … ?
B
C
D
Q3.
What number should this Fibonacci-style sequence begin with? __ , 4, __, 10, 16, …
A
B
C
3 Questions
Q1.
What type of numbers are 1, 8, 27, 64 and 125?
A
B
C
Q2.
2. What are the first 5 terms of the sequence with nth term 2n² + 1?
A
B
C
Q3.
What are the first 5 terms of the sequence with nth term n³ - 2?
A
B
C