Solve the problem.Find an equation of a parabola that contains the points (1, 5), (2, 4), and (3, 1).

A. y = - x2 - x + 
B. y = -x2 + 3x + 4
C. y = x2 - 5x + 3
D. y = -x2 + 2x + 4

Answer: D

Mathematics

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A.
 
B.
 
C.
 
D.
 

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Provide an appropriate response.The sum of all angles of a triangle is 180°. One angle is three times as big as the first angle. The third angle is 20 degrees larger than the first. Write an equation and solve to find how many degrees are in each angle.

Fill in the blank(s) with the appropriate word(s).

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Solve the inequality. Express your answer using interval notation.|x| < -9

A. {-9} B. no solution C. (-?, ?) D. (-9, 9)

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Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.

A. no symmetry B. y-axis C. origin D. x-axis

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