Find an Equation of the Parabola Described and State the Two

question 19

Multiple Choice

Find an equation of the parabola described and state the two points that define the latus rectum.
-Focus at $( 0,4 )$ ; directrix the line $y = - 4$

• A) \(y ^ { 2 } = 4 x\); latus rectum: \(( 9,2 )\) and \(( - 9,2 )\)
• B) \(x ^ { 2 } = 4 y\); latus rectum: \(( 2,4 )\) and \(( - 2,4 )\)
• C) \(x ^ { 2 } = 16 y\); latus rectum: \(( 8,4 )\) and \(( - 8,4 )\)
• D) \(x ^ { 2 } = 16 y\); latus rectum: \(( 4,8 )\) and \(( - 4,8 )\)

---

Definitions:

Inventory Period

The average time it takes for a company's inventory to turn over or be sold.

Payables Period

The average amount of time it takes for a business to pay off its owed liabilities to suppliers or creditors.

Cash Cycle

It describes the time it takes for a company to convert its investments in inventory and other resources into cash flows from sales.

Inventory Period

The amount of time it takes for a company to sell through its current stock of inventory.