Question

1. find the 7th term of the arithmetic sequence defined by the rule: $f(n) = -2n + 15$.

Explanation:

Step1: Substitute n=7 into formula

$f(7) = -2(7) + 15$

Step2: Calculate multiplication first

$f(7) = -14 + 15$

Step3: Compute final sum

$f(7) = 1$

Answer:

1