Answer the question about the given function.Given the function f(x) = 4x2 + 8x + 8, if x = -1, what is f(x)? What point is on the graph of f?
A. 4; (-1, 4)
B. 4; (4, -1)
C. 20; (20, -1)
D. 20; (-1, 20)
Answer: A
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The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = 8 sin ?
A. C
, radius = 4
B. C(4, ?), radius = 4
C. C
, radius = 4
D. C(4, 0), radius = 4
Answer the question.Which number can serve as a common denominator for 
and 
?
A. 90 B. 9 C. 19 D. 20
Factor completely. If the polynomial cannot be factored, say it is prime.x2 + 20x + 100
A. (x - 10)2 B. (x + 10)2 C. (x + 10)(x - 10) D. x2 + 20x + 100
Suppose an eight-pound object is dropped from a height of 5,000 feet, where the air resistance is proportional to the velocity. Write the velocity as a function of time if its velocity after 5 seconds is approximately -55 feet per second. Use a graphing utility or a computer algebra system. Round your calculations to four decimal places. ?
A. 
B. 
C. 
D. 
E. 