Find the focus and directrix of the parabola.x2 + 12y = 0
A. F: (0, -3); D: x = 3
B. F: (0, -3); D: y = -3
C. F: (-3, 0); D: y = 3
D. F: (0, -3); D: y = 3
Answer: D
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?Hot dogs come in packages of 8 and hot dog buns come in packages of 10. Which of the following shows how we cannot find the number of packages of each in order to obtain a perfect match of dogs and buns? What concept is used? ?
A. ?Prime factor 8 and 10 and find the LCM. B. ?Find the union of the prime factors of 8 and 10: LCM concept C. ?Prime factor 8 and 10 and find the GCF. D. ?Find the smallest number that both 8 and 10 go into: LCM concept E. ?Add 8's together and add 10's together until you find a common sum: LCM concept
Identify the property illustrated by the statement. Assume all variables represent real numbers.(2 + 3) + 6 = (3 + 2) + 6
A. Associative B. Closure C. Distributive D. Commutative
Find the slope of the tangent line to the graph at the given point.f(x) = 2x2 + x - 3 at (4, 33)
A. 5 B. 19 C. 17 D. 15
Suppose that the function with the given graph is not f(x), but f'(x). Find the locations of all extrema, and tell whether each extremum is a relative maximum or minimum.
A. Relative minimum at -4 B. Relative minimum at -2; relative maximum at 2 C. Relative maximum at -2; relative minimum at 2 D. Relative maxima at -2 and 2