Use the sequence feature of a graphing calculator to evaluate the sum of the first 10 terms of the arithmetic sequence.
Round to the nearest thousandth, if necessary.
-A man earned $2500 the first year he worked. If he received a raise of $500 at the end of each year, what was his salary during the 15th year?
A) $9500
B) $7000
C) $10,000
D) None of these

Question

Quizplus · Accepted Answer

The salary during the 15th year can be calculated using the formula for the nth term of an arithmetic sequence: $a_n = a_1 + (n - 1)d$, where $a_1$ is the first term, $d$ is the common difference, and $n$ is the term number. Here, $a_1 = 2500$, $d = 500$, and $n = 15$. So, $a_{15} = 2500 + (15 - 1) \times 500 = 2500 + 7000 = 9500$.

Use the Sequence Feature of a Graphing Calculator to Evaluate