Find an Equation for the Ellipse Described $( \pm 2,0 ) ; \quad x$

question 174

Multiple Choice

Find an equation for the ellipse described.
-Foci at $( \pm 2,0 ) ; \quad x$ -intercepts are $\pm 7$

• A) \(\frac { x ^ { 2 } } { 45 } + \frac { y ^ { 2 } } { 49 } = 1\)
• B) \(\frac { x ^ { 2 } } { 4 } + \frac { y ^ { 2 } } { 49 } = 1\)
• C) \(\frac { x ^ { 2 } } { 4 } + \frac { y ^ { 2 } } { 45 } = 1\)
• D) \(\frac { x ^ { 2 } } { 49 } + \frac { y ^ { 2 } } { 45 } = 1\)

---

Definitions:

Weighted-Average Method

An inventory costing method that assigns a weighted average cost to each unit of inventory on hand.

Equivalent Unit

An accounting measure used to compute the number of units produced during a reporting period, converting partially completed units into an equivalent number of fully completed units.

Equivalent Units

A concept used in process costing that converts work-in-process inventory to a number of fully finished units.

Process Costing

A costing method used in manufacturing where costs are assigned to batches or production runs, typically for homogeneous products.