Answer to Question #56447 in Algebra for Box Cars

Question

1: Which of the following are quadratic functions. There can be multiple right answers. Check all that apply.

Y= 5x - 3x^2

Y= x - x^3

Y= 2x^2 -3x + 7

Y= 3x -4
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2: Which of the following Quadratic functions has a graph that opens downward. There can be multiple right answers. Check all that apply.

Y= 3x^ - x - 1

Y= - (2x^2 - 1)

Y= 5/2 x - 3x^2

Y = 3/2 x^2 -3x +15
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3: In which form is the following function written

Y= -2(x - 3)(x+5)
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4: In which form is the following function written.

y-3 = 1/2 (x - 1)^2
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