Find the center of the ellipse.
+ 
= 1
A. (20, 0)
B. (0, 12)
C. (0, 0)
D. (20, 12)
Answer: C
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Find the focus and directrix of the parabola.y2 = 4x
A. (1, 1); x = 1 B. (1, 0); x = -1 C. (1, 0); x = 1 D. (0, 1); y = -1
Solve the problem.A study in a small town showed that the percent of residents who have college degrees can be modeled by the function 
where x is the number of years from 2010. Rewrite the model with x equal to the number of years from 2015.
A. P = 32x0.31 - 5
B. P = 32x0.31 + 5
C. 
D. 
Solve the problem. Write the answer in lowest terms and as a whole or mixed number where possible.Find the area of a rectangular table top having a length of 4 feet and a width of 
feet.
A. 4
ft2
B. 13 ft2
C. 
ft2
D. 8
ft2
Find the intercepts of the function f(x).f(x) = 7x - x3
A. x-intercepts: 0, -7; y-intercept: 0
B. x-intercepts: 0, -7; y-intercept: 7
C. x-intercepts: 0, 
, -
; y-intercept: 7
D. x-intercepts: 0, 
, -
; y-intercept: 0