The Nth Term of a Quadratic Sequence

The temperature, in $∘C{}^\circ\text{C}$ , recorded at midnight on five consecutive nights follows a quadratic sequence.

7 6 7 10 15

Find an expression, in terms of $n$ , for the $n\,$ th term of this sequence.

[4]

The temperature, in $∘C{}^\circ\text{C}$ , recorded at midnight on five consecutive nights follows a quadratic sequence.

7 6 7 10 15

Find an expression, in terms of $n$ , for the $n\,$ th term of this sequence.

[4]

The Nth Term of a Quadratic Sequence Questions