Find an equation of the parabola described.Vertex at (0, 0); axis of symmetry the x-axis; containing the point (4, 6)
A. y2 = 
x
B. x2 = 
y
C. y2 = 9x
D. x2 = 9y
Answer: C
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Simplify the given expression. Write the answer with variables in alphabetical order and any constant term last.8m2 + 13m - 12m2 + 4m
A. 4m2 - 17m
B. 4m2 + 17m
C. 
m2 + 17m
D. 
m2 - 17m
Solve. Write the fraction in simplest form.Marty jogged 
of a mile from home and then rested. Then he continued jogging another 
of a mile until he discovered his watch had fallen off. He walked back along the same path for 
of a mile until he found his watch. Find how far he was from his starting point.
A. 
mi
B. - 
mi
C. 
mi
D. 
mi
Solve the problem.The height s of a ball (in feet) thrown with an initial velocity of 60 feet per second from an initial height of 4 feet is given as a function of time t (in seconds) by 
What is the maximum height? Round to the nearest hundredth, if necessary. 
A. 56.5 ft B. -37.25 ft C. 60.25 ft D. 69.63 ft
Use a half-angle formula to find the exact value of the expression.sin 
A. 
B. - 
C. 
D. - 
