The seventh term of an arithmetic sequence is -2 and the twelfth term of the sequence is 18.
a.
Find the first term of the sequence.
[2]
b.
Find the common difference.
[2]
Markscheme
3.4.4 Sequences and Series (A-level only) Questions
41 exam-style questions on WJEC A Level Maths 3.4.4 Sequences and Series (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.