Write the equation of the quadratic function whose graph is a parabola containing the given points.An egg is thrown upward from the top of a 128-foot-high building. The ball is 224 feet above ground level after 1 second, and it reaches ground level in 8 seconds. The height above the ground is a quadratic function of the time after the ball is thrown. Write the equation of this function.

A. y = -16x2 + 56x + 128
B. y = -16x2 + 16x + 128
C. y = -16x2 + 112x + 128
D. y = -16x2 + 144x + 128


Answer: C

Mathematics

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Translate the word phrase into an algebraic expression. Explain what the variable represents.The difference of the number of calories and 29

A. 29 + C, where C represents the number of calories B. 29 - C, where C represents the number of calories C. 29C, where C represents the number of calories D. C - 29, where C represents the number of calories

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A. 950 B. 9500 C. 0.095 D. 0.0095

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Match the graph to its equation.

A.  +  = 1
B. -  +  = 1
C.  +  = 1
D.  -  = 1

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Solve the problem.Is there y-axis symmetry for the rational function f(x) =  ?

A. Yes B. No

Mathematics