The fourth term of an arithmetic sequence is 12 and the tenth term of the sequence is 42.
a.
Find the first term of the sequence.
[2]
b.
Find the common difference.
[2]
Markscheme
1.7.4 Arithmetic sequences and series (A-level only) Questions
41 exam-style questions on AQA A Level Maths 1.7.4 Arithmetic sequences and series (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.