Suppose the percent of U.S. high school seniors from 1975 to 2001 who used marijuana can be modeled by 
percent, where x is the number of years past 1975. Choose the correct interpretation the slope in this equation as a rate of change.
?
A. The percentage of U.S. high school seniors who used marijuana increased at a rate of 0.177% per year.
B. The percentage of U.S. high school seniors who used marijuana decreased at a rate of 17.7% per year.
C. The percentage of U.S. high school seniors who used marijuana decreased at a rate of 0.177% per year.
D. The percentage of U.S. high school seniors who used marijuana increased at a rate of 17.7% per year.
E. The percentage of U.S. high school seniors who used marijuana decreased at a rate of 1.77% per year.
Answer: C
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Add.(9x2 + 8x - 12) + (16x + 12)
A. 9x2 + 8x + 24 B. 9x2 + 24x - 24 C. 33x3 D. 9x2 + 24x
Solve the problem.Determine the point on the paraboloid 
that is closest to the point 
A. (3, 2, 84) B. (2, 3, 59) C. (-2, 3, 59) D. (3, -2, 84)
Solve the absolute value equation. 
= 6
A. 
B. 
C. 
D. ?
Solve.In an experiment with a laser beam, the path of a particle orbiting an object is described by the equation 
, where x and y are measured in centimeters from the center of the object. The laser beam follows the path 
. Find the coordinates at which the laser will illuminate the particle (that is, when the particle will pass through the laser beam).
A. (10, 0) and (0, -7) B. (-10, 0) and (0, 7) C. (7, 0) and (0, -10) D. (-7, 0) and (0, 10)