Solve by graphing. Label the axes and show where the solution is located on the graph.The value, v, in hundreds of dollars, of Juan's computer is approximated by 
where t is the number of years since he first bought the computer. Graph the equation and use the graph to estimate the value of the computer 8 years after it was purchased.
A. $1400
B. $200
C. $840
D. $600
Answer: D
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Evaluate the polynomial for the given values of the variables.Evaluate xy3- y2 + 4xy + 2 for x = 3 and y = -1.
A. -8 B. -12 C. -14 D. 12
Use the four-step process to find the slope of the tangent line to the graph of the given function at any point.
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A. -7x B. 7 C. 7x D. 0
Plot the ordered pairs associated with the given data. (Let the first row be x and the second row be y.)Suppose that the speed of a car, measured in miles per hour (mph), is monitored for some short period of time after the driver applies the brakes. The following table relates the speed of the car to the amount of time, measured in seconds (sec), elapsed from the moment that the brakes are applied.
A. 
B. 
C. 
D. 
Find all numbers u (if any) so that the given point (u, y) or (x, u) is on the unit circle.
A. ± 
B. ± 
C. ± 
D. ± 