Select the Standard Form of the Equation of the Parabola $x ^ { 2 } = \frac { 5 } { 2 } y$

question 554

Multiple Choice

Select the standard form of the equation of the parabola and determine the coordinates of the focus.

• A) \(x ^ { 2 } = \frac { 5 } { 2 } y\) ; Focus: \(\left( 0 , \frac { 5 } { 8 } \right)\)
• B) \(y ^ { 2 } = - \frac { 5 } { 2 } x\) ; Focus: \(\left( - \frac { 5 } { 8 } , 0 \right)\)
• C) \(x ^ { 2 } = - \frac { 5 } { 2 } y\) ; Focus: \(\left( 0 , - \frac { 5 } { 8 } \right)\)
• D) \(y ^ { 2 } = \frac { 5 } { 2 } x\) ; Focus: \(\left( \frac { 5 } { 8 } , 0 \right)\)
• E) \(y ^ { 2 } = \frac { 5 } { 2 } x\) ; Focus: \(( 5,0 )\)

Understand the concept and purpose of foreign exchange reserves in the context of fixed exchange rate policies.

Distinguish between fixed (or pegged) and flexible exchange rate policies.

Comprehend the economic implications of persistent U.S. trade deficits.

Identify the major components of the current and capital and financial accounts in the balance of payments, and how these balances are determined.

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Definitions:

Sales Mix

The combination of products or services that a company sells, impacting the overall profitability.

Operating Income

Earnings before interest and taxes (EBIT), representing the profit from core business operations.

Contribution Format

Contribution format is an income statement format that separates costs into fixed and variable categories, highlighting the contribution margin of goods or services sold.

Contribution Margin

The amount by which sales revenue exceeds variable costs. It represents the portion of sales that helps to cover fixed costs.