Determine the absolute value function f(x) that has been graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = |x| - 1
D. f(x) = |x| + 1
Answer: C
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Solve the problem.Mary bought a pound of butter for 
and a gallon of milk for 
What was her total bill?
A. $3.63 B. $3.53 C. $4.63 D. $4.53
Determine the possible number of positive real zeros and negative real zeros of the polynomial function using Descartes' rule of signs.f(x) = -6x5 - 8x4 - 4x3 + 5x2 + x + 16
A. 1 positive zero, 4, 3 or 1 negative zeros B. 1 positive zero, 4 or 2 negative zeros C. 1 positive zero, 2 or 0 negative zeros D. 1 positive zero, 3 or 1 negative zeros
Give the center and radius of the circle. Then sketch its graph.
2 + (y + 3)2 = 25
A. center 
, r = 5
B. center 
, r = 5
C. center 
, r = 5
D. center 
, r = 5
Solve the problem.The population of a particular country was 29 million in 1981; in 1987, it was 38 million. The exponential growth function 
describes the population of this country t years after 1981. Use the fact that 6 years after 1981 the population increased by 9 million to find k to three decimal places.
A. 0.366 B. 0.045 C. 1.167 D. 0.055