Find the Vertex and Directrix of the Parabola $x ^ { 2 } - 14 x - 8 y + 73 = 0$

question 58

Multiple Choice

Find the vertex and directrix of the parabola. $x ^ { 2 } - 14 x - 8 y + 73 = 0$

• A)vertex: \(( 7,3 )\) directrix: \(y = 5\)
• B)vertex: \(( - 7 , - 3 )\) directrix: \(y = 5\)
• C)vertex: \(( 7,3 )\) directrix: \(y = 1\)
• D)vertex: \(( - 7 , - 3 )\) directrix: \(y = - 5\)
• E)vertex: \(( - 7 , - 3 )\) directrix: \(y = 9\)

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Definitions:

Opportunity Cost

The cost of forgoing the next best alternative when making a decision or choosing a particular course of action.

Comparative Advantage

The ability of an individual, firm, or country to produce a good or service at a lower opportunity cost than competitors, leading to more efficient global production patterns.

Specialize

The process of focusing efforts and resources on a narrow area of expertise to increase efficiency and proficiency.

Comparative Advantage

The ability of an individual, firm, or country to produce a good or service at a lower opportunity cost than competitors.