Question

The sequence below starts at 13. The term-to-term rule is to subtract 4 and the

multiply by 2 each time.
a) Work out the third term of this sequence.
b) Is this sequence increasing, decreasing or neither?

[13]. ->>> [ ] ->>> [ ]

Answer 1

a)28
Because 13 minus 4 equals 9 then times four is 18, 18 minus 4 equals 14 then times four is 28.
b) increasing