Find the equation of the parabola corresponding to the given information.The parabola has focus and directrix as shown.

A. y = x2
B. x = y2
C. x = - y2
D. x = - y2

Answer: B

Mathematics

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Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.

A. 264 B. 2728 C. 40 D. 5140

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Mathematics

Provide an appropriate response.If f(x) = 2x2 - x - 3 and g(x) = -4x2 + 6x + 5, find the following:(a) (f + g)(x)(b) (f - g)(x)(c) (f - g) (-1)

A. (a) -2x2 + 5x + 2 (b) 6x2 - 7x - 8 (c) 5 B. (a) -2x2 + 5x + 2 (b) -2x2 - 5x - 8 (c) 5 C. (a) -2x2 + 7x + 2 (b) -2x2 - 7x - 8 (c) 15 D. (a) -2x2 + 5x + 2 (b) 6x2 - 5x - 8 (c) 15

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Mathematics

Is the function graphed one-to-one?

A. Yes B. No

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Mathematics

Solve the equation by completing the square.(x + 2)(x - 1) = -4

A. x = -3 or x = 2
B. no real solution
C. x = -2 or x = 3
D. x = -3 -  or x = -3 +  

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Mathematics