Find the focus and the directrix of the parabola.(x + 2)2 = 16(y + 4)
A. Focus: (-2, 0); directrix: y = -8
B. Focus: (-2, -8); directrix: y = 0
C. Focus: (-4, 2); directrix: y = -6
D. Focus: (-2, 0); directrix: x = -8
Answer: A
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Provide an appropriate response.Why is 8 called a triple solution to the equation (x - 8)3 = 0?
What will be an ideal response?
Use the circle graph to solve the problem.A survey of the 3356 vehicles on the campus of State University yielded the following circle graph.
Together, what percent of the vehicles are either vans or convertibles?
A. 22% B. 16% C. 10% D. 96%
Solve the problem.A cattle pen is constructed with solid wood walls. The pen is divided into four rectangular compartments. Each compartment is x feet long and y feet wide. The walls are x - 8 feet high.
Find the total surface area of the walls used in the cattle pen. Express the answer in factored form.
A. Surface area = (x - 8)2(5x + 8y) ft2 B. Surface area = (x - 8)(x + y) ft2 C. Surface area = (x - 8)(2x + 8y) ft2 D. Surface area = (x - 8)(5x + 8y) ft2
Find the opposite (additive inverse), and the reciprocal (multiplicative inverse). Assume that the value of an expression is not 0.Expression: - 
Opposite: 
Reciprocal: 
A. Opposite: 
Reciprocal: - 
B. Opposite: 
Reciprocal: 
C. Opposite: - 
Reciprocal: 
D. Opposite: 
Reciprocal: 