Write an Equation for the Parabola $( 9 , - 9 )$

question 66

Multiple Choice

Write an equation for the parabola.
-vertex $( 9 , - 9 )$ , focus $( 9 , - 4 )$

• A) \(20 ( y + 9 ) = ( x - 9 ) ^ { 2 }\)
• B) \(y + 9 = 20 ( x + 9 ) ^ { 2 }\)
• C) \(20 ( y - 9 ) = ( x + 9 ) ^ { 2 }\)
• D) \(x + 9 = 20 ( y + 9 ) ^ { 2 }\)

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Definitions:

Modus Ponens

A form of deductive reasoning that asserts if a conditional statement "If P, then Q" is accepted as true and P is true, then Q must also be true.

Modus Tollens

A method of logical argument that infers the falsehood of a proposition from the impossibility of its consequence.

Hypothetical Syllogism

A form of reasoning where if the first condition holds, then the second condition must follow, leading to a conclusion if the initial hypothesis is true.

Fossils

The preserved remains or traces of animals, plants, and other organisms from the remote past.