116 Answered Questions for the topic Parabolas

Parabolas

01/10/14

how do I identify a parabola
  using y = x^2 - 4x -32 how do I identify if the parabola opens up or down so I can explain the conclusion.     Thank you
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Expert Answers •3
Parabolas

01/07/14

How do I find the equation in standard form of the parabola passing through the points (2, 20), (-2,-4), and (0,8)?
I've tried to figure it out by substituting the x and y values into an equation (y=ax2+bx+c) and writing a system of equations, but I got confused.
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Expert Answers •3
Parabolas

10/22/13

find the vertex of the parabola
f(x)=x^2-4x-5   The vertex of the given parabola is _____.  (typed an ordered pair)
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Parabolas

09/09/13

how do you graph a parabola
8y(squared)=x(squared)
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Parabolas

08/21/13

How to plot a parabola graph to make satellite dish
I am trying to make a mold for satellite dish . I can calculate the maths but my biggest challenge is plotting the graph . I need a tutor that can put me through
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Expert Answers •1
Parabolas

06/03/13

What is the vertex of y=5(x+2)^3
I also need the the equation in standard vertex form and the axis of symmetry and the direction of opening
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Parabolas

04/18/13

write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward. Find the vertex, focus, and the directrix
A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 5 inches from the vertex of the mirror
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Parabolas

04/15/13

y=(x+4)^2-4
Graph the parabola
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Parabolas Conics

03/24/13

what is -4 = -1 divided by 4a?
How do I solve the equation: -4 = -1 divided by 4*a
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Parabolas Conic Sections

12/23/12

How do you write the general conic form equation of a parabola?
The answer must be set equal to zero and the only information given is the vertex and the focus
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Expert Answers •1

12/11/12

Thorough Explanation needed (Break Down)
Two satellites are orbiting earth. The path of one has the equation x^2 +y^2 = 2250000. The orbit of the other is 200 km farther from the center of earth. In one orbit, how much farther does the... more
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12/11/12

A problem (real life application) and explanation (answer)
Using all four (4) conic sections: Cirlcle, Ellipse, Hyperbola, and Parabola.  
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Expert Answers •1
Parabolas

12/11/12

Real life application with parabolas?
Problem in real life with a explanation(answer).
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Parabolas

12/04/12

2x^2-3x-9=0
you must get what is equal to zero
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Parabolas Algebra

11/30/12

In which direction will this parabola open? x= 3(y-5)^2-7
i dont understand which way it would open! /;
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Parabolas Conic Sections

10/14/12

how do you find p when trying to find the focus for parabolas
parabolas find focus
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Expert Answers •1

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