Express the Sum Using Summation Notation $$2 + 8 + 18 + \ldots + 50$$

Multiple Choice

Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.
- $$2 + 8 + 18 + \ldots + 50$$

A) $\sum _ { i = 1 } ^ { 5 } 2 i ^ { 2 }$
B) $\sum _ { i = 0 } ^ { 5 } 2 i ^ { 2 }$
C) $\sum _ { i = 1 } ^ { 5 } i ^ { 2 }$
D) $\sum _ { i = 1 } ^ { 5 } 2 ^ { 2 }$