The function Y2 is defined as Y1 + k for some real number k. Based upon the given information about Y1 and Y2, find k.
A. 3
B. -5
C. 4
D. -4
Answer: B
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Solve the problem.Sally's dog weighs 5.25 pounds . How many ounces is this?
A. 73.5 B. 0.33 C. 84 D. 12
Find the exact solutions to the quadratic equation, using a method of your choice.3x2 = 39
A. 
B. 13, -13
C. ±
D. 14
Solve the problem.A parallelogram has a base of length 2x + 1 and a height of x + 3 and has an area of 42 square units. Find the base and height of the parallelogram. (A = bh)
A. height = 7 units; base = 6 units B. height = 3 units; base = 14 units C. height = 14 units; base = 3 units D. height = 6 units; base = 7 units
Solve the problem involving modeling with polynomial functions.For this problem, y-values correspond to the number of students at School X over the years 1990 (x = 0), through 1994 (x = 4). (a) Use the data given in the table below to determine a cubic (third-degree) polynomial model. 
(b) Based on the cubic model, how many students were at School X in 1992?
A. (a) y ? -57.1
x3 + 405x2 + 239.1
x + 2902;
(b) 5721 students
B. (a) y ? -57.1
x3 + 405x2 + 239.1
x + 2902;
(b) 4543 students
C. (a) y ? 118.5x3 - 824.
x2 + 2347.1
x + 2902;
(b) 5246 students
D. (a) y ? -57.1
x3 + 405x2 + 239.1
x + 2902;
(b) 2902 students