If the following defines a one-to-one function, find its inverse. If not, write "Not one-to-one."f(x) = 4x2 + 8
A. f -1(x) = ± 
B. f -1(x) = 
C. Not one-to-one
D. f -1(x) = 
Answer: C
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A ? B
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A cannon fires a cannonball as shown in the figure. The path of the cannonball is a parabola with vertex at the highest point of the path. If the cannonball lands 800 ft from the cannon and the highest point it reaches is 1600 ft above the ground, find an equation for the path of the cannonball. Place the origin at the location of the cannon.
 figure 1.png)