Question

12. Write down the next 20 terms of the sequence 1, 3, 6, 10, 15, ...
(a) Multiply each number in the sequence by 8 and add 1. What do you notice?
(b) Choose any two consecutive numbers in the sequence, what do
notice?
(c) Select any two consecutive numbers in the sequence, square each of them and
add. What do you notice?
you
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Answer 1

Answer:

Multiply each number in the sequence by 8 and add 1. What do you notice?

(b) Choose any two consecutive numbers in the sequence, what do

notice?

(c) Select any two consecutive numbers in the sequence, square each of them and

add. What do you notice?

you