Evaluate the Sum Using the Given Information $\mathrm { x } _ { 1 } = 4 , \mathrm { x } _ { 2 } = - 1 , \mathrm { x } _ { 3 } = 2 , \mathrm { x } _ { 4 } = 1$

question 153

Multiple Choice

Evaluate the sum using the given information.
- $\mathrm { x } _ { 1 } = 4 , \mathrm { x } _ { 2 } = - 1 , \mathrm { x } _ { 3 } = 2 , \mathrm { x } _ { 4 } = 1$ , and $\mathrm { x } _ { 5 } = - 4$
$\sum _ { i = 1 } ^ { 5 } \left( 2 x _ { i } + x _ { i } \right)$

• A) 45
• B) 19
• C) 6
• D) 8

---

Definitions:

Vertices

Plural of vertex; refers to the multiple points where two or more curves, lines, or edges meet, especially as the corner points of polygons or angles.

Hyperbola

A type of smooth curve lying in a plane, defined by its geometric properties or by equations for which it is the solution set.

Asymptotes

Lines that a graph approaches but never touches, indicating behaviour towards infinity in functions or sequences.

Hyperbola

A type of smooth curve lying in a plane, defined as the difference of distances from any point on the curve to two fixed points (foci) being a constant.