Tutors Answer Your Questions about Quadratic-relations-and-conic-sections (FREE)
Question 664345: Write the vertex form for a parabola with the given characteristics.
1. vertex ( 0, 0) directrix x = -15
2. vertex (3, 3) focus (3, 0)
3. Vertex ( 0, 0 ) focus ( 2, 0)
Write the standard form for the parabola given the following equation.
4. x2 + 8x - y + 20 = 0
Click here to see answer by lwsshak3(11628) |
Question 666312: A motel advertises that it will provide dinner, dancing, and drinks for $60 per couple at a New Year's Eve party. It must have a guarantee of 50 couples. Furthermore, it will agree that for each couple in excess of 50, it will reduce the price per couple for all attending by $0.25. How many couples will it take to maximize the motel's revenue?
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Question 668467: The question states, "Identify the curve and find the characteristics listed. then sketch the curve."
x^2 + (y-4)^2= 64 center radius
(x+3)^2 + (y+6)^2 = 49 center raidus eccentricity
someone help! the book doesnt really explain how to do this?
Click here to see answer by ewatrrr(24785)  |
Question 668469: it says, "Identify the curve and find the characteristics listed. then sketch the curve."
(x-3)^2/9 + (y+3)^2/16= 1 center vertices foci
y^2/16 - x^2/9 = 1 center asymptotes foci
hopefully someone can help me
Click here to see answer by ewatrrr(24785)  |
Question 669342: Determine the quadratic function f whose vertex is (1,-3) and passes through (2,-1).
f(x) =
(Give the answer in the form f(x) = ax^2 + bx + c.)
This is very confusing to me.
I know that the vertex (h,k) = (1,-3) and that this is a parabola that passes through the point of (2,-1)(x being 2 and y being -1) but I am not sure how to do what they are asking me here. Please Help!!
Nichole
Click here to see answer by lwsshak3(11628) |
Question 671937: The major axis of an ellipse is 12 units and the foci are at (-4,-1)and (-4,7).Find the standard form of the equation of this ellipse,the length of minor axis ,the vertices and coordinates where the ellipse intercepts the minor axis.
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