Find parametric equations for the rectangular equation.y = x4 + 1
A. x = t2, y = t4 + 1; 0 ? t < ?
B. x = t, y = t2 + 1; 0 ? t < ?
C. x = t2, y = t2 + 1; 0 ? t < ?
D. x = t, y = t4 + 1; 0 ? t < ?
Answer: D
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Solve the system.
A. (-2, 3), (-3, 2) B. (2, -3), (3, -2) C. (2, 3), (3, 2) D. (-2, -3), (3, 2)
List the quadrant(s) in which the given point is located. (20, 15)
A. I B. III C. IV D. II
Find A, B, and C for the partial fraction decomposition.
= 
+ 
+ 
A. A = 
, B = 
, C = 2
B. A = 3, B = 1, C = 2
C. A = 1, B = 2, C = 3
D. A = 
, B = 2, C = 
The following table shows the approximate average household income in the U.S. in 1990, 2002, and 2003. (
represents 1990.)
t (Year)
0
12
13
H (Household Income in $1000)
30
42
43
?
Which of the following kinds of models would best fit the given data? (A, a, b, c, and m are constants.)
?
A. Exponential: 
B. Logarithmic: 
C. Linear: 
D. Quadratic: 
E. Power: 