What are the coordinates of the vertex of the parabola given by the equation: y = x2 - 2x - 2 ?

Question

Asked 4/3/2014 4:54:55 PM

Updated 4/23/2014 9:25:14 PM

1 Answer/Comment

s

armageddon|Points 2072|

Question

Asked 4/3/2014 4:54:55 PM

Updated 4/23/2014 9:25:14 PM

1 Answer/Comment

Rating

3

If the equation of a quadratic is y = 6x^2 -4x - 1, then the equation of the axis of symmetry is: x = -b/2a = 1/3

Added 4/23/2014 9:25:14 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [4/23/2014 9:25:27 PM]

The area of a rectangular pool is 48 square meters. The length is three times as long as the width. What are the dimensions of the pool?

Question|Asked by Jabba

Updated 4/7/2014 7:14:20 AM

1 Answer/Comment

Let w be the width of the rectangular pool, then its length is 3w, its area = w(3w) = 3w^2 = 48

Solve the equation we get x = 4 or -4 (can not be since its a ractangular)

The width is 4 meters and the length is 12 meters.

Solve the equation we get x = 4 or -4 (can not be since its a ractangular)

The width is 4 meters and the length is 12 meters.

Added 4/7/2014 7:14:20 AM

This answer has been confirmed as correct and helpful.

Write the area of the square in simplest polynomial form. A = s2
A square with sides of 2 x + 7.
A. 4x2 + 49
B. 4x2 + 14
C. 4x2 + 14x + 49
D. 4x2 + 28x + 49

Question|Asked by Jabba

Not Answered

Updated 4/7/2014 7:02:06 AM

1 Answer/Comment

The area of a square with sides of 2x + 7 is D. 4x2 + 28x + 49

A = s^2 = (2x + 7)^2 = 4x^2 + 28x + 49

A = s^2 = (2x + 7)^2 = 4x^2 + 28x + 49

Added 4/7/2014 7:02:06 AM

This answer has been confirmed as correct and helpful.

Which of the following polynomials has a degree of 4?
A. 2x2y2 - 3xy
B. 4x4 y + 5x
C. 5xy4 - 7y2
D. 8x4y4 - 25

Question|Asked by Jabba

Not Answered

Updated 4/7/2014 7:05:38 AM

1 Answer/Comment

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