Find the focus and the directrix of the parabola.(y - 9)2 = -16(x + 2)
A. Focus: (-6, 9); directrix: x = 2
B. Focus: (2, 9); directrix: x = -6
C. Focus: (-6, 9); directrix: x = -2
D. Focus: (-6, 9); directrix: y = 2
Answer: A
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Provide an appropriate response.Given 
f(x) = Ll, 
f(x) = Lr , and Ll = Lr, which of the following statements is false? I. 
f(x) = Ll II. 
f(x) = Lr III. 
f(x) does not exist.
A. none B. II C. III D. I
Solve the inequality. Write the solution set in interval notation.x2(x + 16)2 < 0
A. ? B. (-?, -4] ? [0, 4] C. (-?, ?) D. [-4, 0] ? [4, ?)
Determine the quadratic function whose graph is given.
A. f(x) = -x2 + 6x B. f(x) = x2 - 6x C. f(x) = x2 + 6x D. f(x) = -x2 - 6x
Write an inequality using the variable x that corresponds to the set graphed on the number line.
A. x ? -4 B. x > -4 C. x < -4 D. x ? -4