EduNinja

(a)

These are the first four terms of a sequence.

\begin{array}{llll} 8 & 15 & 22 & 29 \end{array}

[ 4 ]

(i)

Write down the next term.

[ 1 ]

(ii)

Write down the term to term rule for continuing this sequence.

[ 1 ]

(iii)

Find an expression for the nth term.

[ 2 ]

7n+1 oe final answer
B1 for 7n+j or kn+1, $k\ne0$ , as final answer, or for 7n+1 seen then spoilt.

(b)

Find the next term in each of these sequences.

[ 2 ]

(i)

18, 21, 26, 33, 42, $\ldots$

[ 1 ]

(ii)

$\quad 18, \quad 20, \quad 24, \quad 32, \quad 48, \quad \ldots$

[ 1 ]

(c)

Find the first three terms of the sequence with nth term $n^{2}+5 n$ .

[ 2 ]

CAIE IGCSE Mathematics Core C2.7 Sequences Topic Practice