116 Answered Questions for the topic Parabolas

Parabolas Graphing Parabolas

12/01/14

Width 50 height 30 sail with mast of 27
The underside of a bridge has the shape of a parabolic arch. It has a maximum height of 30m and a width of 50m. Can a sailboat with a mast of 27m above the water pass under the bridge at a distance... more
Follows • 2
Expert Answers •1
Parabolas Word Problem

11/17/14

Parabola word problem
Find two or more numbers having a sum of 50 such that the sum of the square of one and three times the square of the other is a minimum.
Follows • 2
Expert Answers •2

11/09/14

Please help me with my quadratic function word problem!
The height y of a parabolic arch is given by y=-1/16x2+40, where x is the horizontal distance from the center of the base of The arch. All distances are in feet. What is the highest point on the... more
Follows • 2
Expert Answers •1
Parabolas

11/04/14

An object is fired vertically from the top of a tower at a velocity of 80 feet per second. The tower is 200 feet high. The height of the object above the ground
Define a variable and write an equation for each of the following.
Follows • 1
Expert Answers •1
Parabolas

11/04/14

A taxi service operates between the airport transporting 300 passengers a day. The charge is $8.00. The owner estimates that 20 passengers will be lost for each
Define a variable and write an equation for each of the following.
Follows • 1
Expert Answers •1
Parabolas

11/04/14

George Polo has 120 meters of fence to make a rectangular pen for ducks. If a shed is used as one side of the pen, what would be the length and width for maximu
Define a variable and write an equation for each of the following.
Follows • 1
Expert Answers •1
Parabolas

11/04/14

Find two numbers whose sum is 36 and whose product is a maximum.
Dealing with parabolas, define a variable and write an equation for each of the following.
Follows • 1
Expert Answers •1
Parabolas Algebra 2 Conics

10/28/14

parabola conic form
I how do I write the vertex form of a parabola given the vertex and the focus.  Example: Vertex (-3,4) Focus (-23/8,4)
Follows • 2
Expert Answers •1
Parabolas Math Help

10/11/14

What is the equation of a parabola with a vertex at (0, 0) and a focus at (0, 3).
Working on parabolas and I do not understand how to do this. 
Follows • 2
Expert Answers •2
Parabolas Function

10/10/14

Need to find the function to this equation.
Suppose that a 200 feet long suspension bridge has at its end towers that are 100 feet tall. If the cable come with in 15 feet of the road at the center of the bridge, find the function that models... more
Follows • 1
Expert Answers •1

09/29/14

The parabola is a graph of the equation y = (x-1)^2 - 3 which point will satisfy the inequality
The parabola is a graph of the equation y = (x-1)^2 - 3 which point will satisfy the inequality y<(x-1)^2 - 3?   A.) (1,0) B.) (5,3) C.) (2,5) D.) (0,5)
Follows • 1
Expert Answers •1
Parabolas

06/22/14

What are the dimensions of such a rectangle with the greatest possible area?
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y=8-x2 . What are the dimensions of such a rectangle with the greatest possible area? width=? height=?
Follows • 2
Expert Answers •1
Parabolas Parabola Equation

05/23/14

How to put my parabola in standard form.
I found three points of my parabola: (2.5, 1), (7, 4), and (11.5, 1). I need to put my parabola into standard form, but I am not sure how to do it with the information that I have.
Follows • 3
Expert Answers •2
Parabolas Conic Sections

05/17/14

Find the focus, directrix, and focal diameter of the parabola. 2xsqaured +13y = 0
Find the focus, directrix, and focal diameter of the parabola. 2xsqaured +13y = 0 
Follows • 2
Expert Answers •1
Parabolas College Algebra

05/03/14

Equation of a parabola
How can I find the equation of a parabola when I am given a=1 (I have a graph but do not know the steps I need to take)
Follows • 2
Expert Answers •1
Parabolas College Algebra

05/03/14

Parabola help
Given the equation -5 (x - 2)2 -1=ya. Identify the vertex.b. Identify the axis of the symmetry.c. Identify the direction of the graph (whether it opens up or down).
Follows • 2
Expert Answers •1
Parabolas Graphing Parabolas

04/11/14

write an equation of a parabola with vertex at the origin and the given focus
focus at (0,2)
Follows • 1
Expert Answers •1
Parabolas

04/10/14

How do you find the axis of symmetry when the vertex are (4, 0)?
I had to find the coordinates of the vertex and the equation of the axis of symmetry for the parabola given the by the equation h(x)=-1/2x to the 2nd power +4x-8 and the answer I came up with the... more
Follows • 4
Expert Answers •3

04/02/14

Graphing/Optimization
Find the point on the graph of y=x2 +1 that is closest to the point (8, 3/2).
Follows • 2
Expert Answers •1

04/02/14

Optimization Problems
Two parabolas y=16-3x2 and y=x2-9 are drawn. A rectangle is contructed with sides parallel to the coordinate axes with the two upper vertices on the graph of y=16-3x2 and the two lower vertices on... more
Follows • 2
Expert Answers •1
Parabolas

03/28/14

find an equation in standard form of the line containing given points (1,7) (2,2) (4,-35)
The equation of parabola is y=_________
Follows • 2
Expert Answers •1
Parabolas

03/01/14

how is the parabola related to the focus and directrix?
this is for my math assighnment that is overdue  
Follows • 2
Expert Answers •1

02/12/14

parabolas, ellipses and hyperbolas can someone give me three conic sections.indiciate mathematical features of the conic corresponds within the examples.
conic sections - parabolas, ellipses and hyperbolas.  Look around in your day (home, work, etc) and see if you observe any of the conic sections.  In each explanation, indiciate what one of the... more
Follows • 2
Expert Answers •1
Parabolas

02/11/14

sometimes only half of a parabola is used to model data. Why is this the case? Why would we not be interested in both sides?
Sometimes only half of a parabola is used to model data. Why is this the case? Why would we not be interested in both sides?
Follows • 3
Expert Answers •2

01/16/14

Whats up with spacing of x^2, 0.5x^2, and 2x^2!?
So, I was playing with an online graphing calculator and I plugged in 0.5x2 x2 and 2x2 and when I went up to higher numbers, such as x=10, I noticed they were unevenly spaced. This puzzles me... more
Follows • 3
Expert Answers •2

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.