Use a graphing calculator to evaluate the series.
-$$\sum _ { j = 2 } ^ { 8 } \left( 2 j ^ { 2 } - 12 \right)$$
A) 116.67
B) 322
C) 490
D) -28

Name: Use a graphing calculator to evaluate the series. -\[\sum _ { j = 2 } ^ { 8 } \left( 2 j ^ { 2 } - 12 \right)\] A) 116.67 B) 322 C) 490 D) -28
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Question

Quizplus · Accepted Answer

The series sums the values of the expression $2j^2 - 12$ for $j$ from 2 to 8. Plugging in each value of $j$ into the expression and summing them gives the total sum of 322.

Use a Graphing Calculator to Evaluate the Series ∑j=28(2j2−12)\sum _ { j = 2 } ^ { 8 } \left( 2 j ^ { 2 } - 12 \right)j=2∑8​(2j2−12)

Use a Graphing Calculator to Evaluate the Series $\sum _ { j = 2 } ^ { 8 } \left( 2 j ^ { 2 } - 12 \right)$