Find the Vertex, Focus, and Directrix of the Parabola and Sketch

question 76

Multiple Choice

Find the vertex, focus, and directrix of the parabola and sketch its graph. $$y ^ { 2 } + 6 y + 4 x + 1 = 0$$

• A) vertex: \(( - 2,3 )\); focus: \(( - 3 , - 3 )\); directrix \(x = - 1\)
• B) vertex: \(( 2 , - 3 )\); focus: \(( 3 , - 3 )\); directrix \(x = - 1\)
• C) vertex: \(( 2 , - 3 )\); focus: \(( 1 , - 3 )\); directrix \(x = 3\)
• D) vertex: \(( 2 , - 3 )\); focus: \(( 1 , - 3 )\); directrix \(x = 3\)
• E) vertex: \(( - 2,3 ) ;\) focus: \(( - 3 , - 3 )\);directrix \(x = 1\)

Understand the mechanisms by which EPSPs affect membrane potential.

Distinguish between the concepts of convergence and divergence in neural circuits and their importance.

Describe the phases of neuron action potential and the significance of refractory periods.

Understand traditional beliefs regarding insanity and their historical context.

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