Find the vertex of the parabola associated with the quadratic equation.y = x2 + 2x - 3
A. (1, -4)
B. (1, 4)
C. (-1, -3)
D. (-1, -4)
Answer: D
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Solve the problem.At time t ? 0, the velocity of a body moving along the s-axis is 
When is the body's velocity increasing?
A. t > 4.5 B. t < 8 C. t < 4.5 D. t > 8
Find the distance between the pair of points.(2, 3) and (-4, -2)
A. 
units
B. 30 units
C. 61 units
D. 
units
Solve the problem.John and Tony start from Grays lake at the same time and head for a town 10 miles away. John walks twice as fast as Tony and arrives 3 hours before Tony. Find how fast each walks.
A. Tony: 
mph; John: 
mph
B. Tony: 3 mph; John: 6 mph
C. Tony: 
mph; John: 
mph
D. Cannot be determined without more information
Graph the system of inequalities and the points of intersection of the graphs. Label the points of intersection with their coordinates.y ? x2 - 5y + 4x < 27 
A. 
B. 
C. 
D. 