230 Answered Questions for the topic parabola

12/09/19

Find an equation of the ellipse
Find an equation of the ellipse that has vertices (4, 2) & (-2, 2) and foci (3, 2) and (-1, 2)
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Parabola Equations

12/09/19

Question is below. Thank you.
One type of generic mouth guard is made from plastic. It is wide and long, enabling you to cut ends off so that it does not extend past your back teeth. To shape it to your mouth, you put it into... more
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Parabola Algebra 2

11/17/19

Enter the equation of the parabola passing through the points (3, 10), (30, −8), (0, 2).

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11/12/19

I need help on how to get the vertex, y intercepts, and x intercepts of this equation. I would need a step by step since i have no clue how to do this. The equation i need help on is y=2(x-1)^2+2
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Parabola Math Precalculus

11/07/19

Write the equation of the parabola in vertex from that has the following information:

Vertex: (2, -8) Directrix: x=3
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10/31/19

Write an equation for each parabola
(a)vertex (2,-1)focus (2,-5)(b)focus (3,5)directrix x=0
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10/31/19

I don't even know where to start
A bridge with a supporting parabolic arch spans 60 feet with a 30-ft wide road passing underneath the bridge. In order to have a minimum clearance of 16 feet at either edge of the roadway, what is... more
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Parabola Algebra 2

10/30/19

Find the equation in standard form of the parabola that passes through the points (2,-1) (4,-3) (1,-6)
I get to step three and it looks completely wrong. Please help.
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Parabola Geometry

10/29/19

What is the equation of a parabola that never crosses the y-axis?

My teacher said that this might involve some calculus or something. Also I am currently taking Algebra II and Intro to Geometry.
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10/07/19

throwing a softball
Aida threw a softball that traveled along a path described by the parabola y= -x^2 + 10x, where y = the height of the softball in feet and x = the horizontal distance in feet that the ball has... more
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10/06/19

Using the given information write the equations of the parabolas:(3 answers a, b, c )

a)The parabola has the focus at (3, 12) and the vertex at (−2, 12).b)The parabola has the focus at (0, –5) and the directrix at x=14.c)The parabola has x-intercepts (1, 0) and (3, 0), and... more
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10/03/19

Parabolas and Graphing functions

Let the graph of g be a translation 6 units right and 8 units up, followed by a reflection in the x-axis of the graph f(x)=x^2 - 4x. Write a rule for g.
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Parabola Algebra 2

09/18/19

Write an equation of the parabola in intercept form that passes through (-18, 72) with x-intercepts of -16 and -2 .
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09/18/19

a house is a parabolic shape and is 8.5 meters high at its maximum peak and spans 20 meters. write a quadratic function in vertex form that models the shape of the roof of the house
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08/28/19

Quadratic Functions

Use completing the square to write the following equations in vertex form. State the vertex and whether the parabola has a maximum or minimum value.1) y = x^2 - 10x + 32) y= -x^2 + 12x +23) y =... more
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08/26/19

Quadratic Functions

For the following quadratic functions, state the transformations that have occurred to the parent function, state the vertex and whether the parabola will open up or down and sketch the curve by... more
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08/19/19

Which equation shows the x-intercept(s) of the parabola as constants or coefficients?
Parabola D in the xy-plane has equationx2 - 2y2 - 8y - 11 = 0A) x = 2y2 + 8y + 11B) x = 2(y+2)2 + 3C) x - 3 = 2(y+2)2D) y = - {√(x - 3)/2} - 2
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08/19/19

Which of the following equations has a graph in the xy-plane with no x-intercepts?
A) y = x2 + 3x + 4B) y = x2 - 5x - 6C) y = 3x2D) y = 2x - 5
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08/17/19

Math help!! Algebra 1 or 2
The cross section of television antenna dish is a parabola and the receiver is located at the focus, 5 feet above the vertex. A. find an equation for the cross section of the dish.( assume the... more
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Parabola Algebra 2

07/29/19

The vertex is (3,5),and the parabola opens upward
The vertex is (3,5), and the parabola opens upward
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07/17/19

Find an equation of the parabola with focus at (-4,0) and with directrix x=3.

Express your answer in the form x=f(y)So, I got (y-0)^2=4(3.5)(x-(-1/2))I simplified it to be y^2=14(x+1/2) and I solved for x which gave me x=1/14y^2-1/2 still says its wrong! :((
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Parabola Algebra 2

07/14/19

Find the equation of tangent to the parabola, y² = 8x, (4, 2)
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Parabola Geometry

06/27/19

a solar cooker has a parabolic section is y= 4/9 x^2. the greatest depth of the dish is 16 cm. (a) write down the quadratic equation (b) calculate the diameter of the dish

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Parabola Algebra 2 Graphing

06/19/19

Find the equation of the parabola
A parabola has an equation of the form y=ax2+bx+c. It passes through the points (0,3), (1,0), and (3,0). Find the equation of this parabola in the form y=a(x-h)2+k. I don’t know the steps of how to... more
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Parabola Algebra 2

06/18/19

Parabolas and y intercepts
In the equation y=-2(x+1)2-4 it asks to determine whether the graph opens upward or downward, and also the pattern of change in the y values, i am confused as to how you are suppose to find the... more
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