Tutors Answer Your Questions about Quadratic-relations-and-conic-sections (FREE)
Question 622703: I need help with this parabola question it is hard for me to find the vertex of this question.
Find the vertex of the parabola y = 12 x + 4 - x^2. Enter your answer as a point (h,k), including the parentheses.
The vertex is at the point:
Click here to see answer by ewatrrr(24785)   |
Question 623928: I need someone help i am stuck doing this last part of my homework. can someone explain it to me
Match each equation for a parabola with the direction that the parabola opens.
1. y=-3(x+1)^2-8
2. x=-3(y+1)^2-8
3. y=3(x+1)^2-8
4. x=3(y+1)^2-8
A. up
B. right
C. down
D. left
Click here to see answer by ewatrrr(24785) |
Question 623928: I need someone help i am stuck doing this last part of my homework. can someone explain it to me
Match each equation for a parabola with the direction that the parabola opens.
1. y=-3(x+1)^2-8
2. x=-3(y+1)^2-8
3. y=3(x+1)^2-8
4. x=3(y+1)^2-8
A. up
B. right
C. down
D. left
Click here to see answer by Theo(13342)  |
Question 623931: I just started doing parabola and circles i need some help. i need to find what A and B= to.
Find an equation for the ellipse whose graph goes through the points (9,0) and (0,2).
If your answer is \frac{x^2}{A}+\frac{y^2}{B}=1, then
Click here to see answer by ewatrrr(24785) |
Question 623929: I need help with this circle problem it annoying me at this point can someone explain what i need to do in steps. Also need to identify H,K,R
Find the equation of the circle whose diameter has endpoints (-9, -2) and (1, 1). Write it in the form
(x-h)^2 + (y-k)^2 = r^2
Click here to see answer by ewatrrr(24785) |
Question 623929: I need help with this circle problem it annoying me at this point can someone explain what i need to do in steps. Also need to identify H,K,R
Find the equation of the circle whose diameter has endpoints (-9, -2) and (1, 1). Write it in the form
(x-h)^2 + (y-k)^2 = r^2
Click here to see answer by josmiceli(19441)  |
Question 623929: I need help with this circle problem it annoying me at this point can someone explain what i need to do in steps. Also need to identify H,K,R
Find the equation of the circle whose diameter has endpoints (-9, -2) and (1, 1). Write it in the form
(x-h)^2 + (y-k)^2 = r^2
Click here to see answer by math-vortex(648)  |
Question 623803: The equations of three distinct circles are listed below. Using complete sentences, explain which of the three circles would intersect the x-axis only. Justify your answer.
Circle A: (x – 9)2 + (y – 3)2 = 25
Circle B: (x –7)2 + (y + 2)2 = 49
Circle C: (x + 2)2 + y2 = 16
Click here to see answer by jsmallt9(3758) |
Question 624119: a single-lane highway must pass under a serious of bridges. it is proposed that the bridges be shaped as semi-ellipses with the height equal to the width. the builder feels he must allow room for a 6foot wide, 12foot high truck to pass under it. what is the lowest bridge that can be built to serve this purpose?
Click here to see answer by lwsshak3(11628) |
Question 624116: water sprouts (the curve described by the water stream, assumed to be a parabola) from a horizontal pipe 40 feet above the ground. twenty feet below theline of the pipe, the water stream is at a horizontal distanceof 16 feet from the vertical line through the end of the pipe. how far from the vertical line will the stream of water hit the ground?
Click here to see answer by lwsshak3(11628) |
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