A parabolic arch supports a bridge. The arch is 200m wide at its base and 4m tall in the middle. How high is a point on the arch that is 20m horizontally from one end?

A parabolic arch supports a bridge. The arch is 200m wide at its base and 4m tall in the middle. How high is a point on the arch that is 20m horizontally from one end?

Find focus, director and focal diameter

A point p on a parabola y2 =4x, the foot from the perpendicular from it upon the directrix, and the focus of the parabola are the vertices of an equilateral triangle. If the area of the equilateral...

Write a function to represent the rectangular area of the enclosure. How do you know that the function is quadratic?

how do I put this in y^2=4px form ? John

conic sections, a parabola specifically. it is yeah

As T=S¹

I can't tell if 2x^2 would be identified as (2x)^2 or 2(x)^2. There's no parentheses in the original problem although I assume that if it was (2x)^2 it would be indicated, but I just want to make...

Use gaussian elimination to solve.

Given 2 points in a parabola, say (1,0) and (2,4) and axis the y-axis. How do you find the equation?

Given 2 points on a parabola A(1,0) and B(2,4) and having the y-axis as its axis. How do you find the equation?

a flashlight is shaped like a paraboloid and the light source is placed at the focus so that the light bounces off parallel to the axis of symmetry; this is done to maximize illumination. A particular...

How do I graph this my x scale has to go by .25 so what is my y coordinates(h vs t)(h-x vs t-y) i also need to know what the equation for this problem would be

A parabola is given by the equation y2 = -24x. find the directrix and focus of the parabola

Using the function f(x) = 9x^2 + 12x + 4 find the vertex and the equation of axis of symmetry for the parabola. (The zeros of this function are (-2,0) and (-2,0) ) Using...

Using the function f(x) = ax^2 + bx + c create your own parabola. Answer these questions about your parabola: What are the zeros? What is the y-intercept? What...

please help me solve for y in this parabola equation

If (0,0) be the vertex and 3x-4y+2 =0 be the directrix of a

Write an equation for a parabola that is congruent to y=1/3x^2, has vertex (3,-5)

This is in the section on parabolas. To me it seems like x=-1 or 1 But I think the answer is supposed to be a parabola, and I have no idea how to find the y related function: here's...

Hey everyone, is it possible to find the equation of a parabola (i know is a parabola) from a part of its graph... Simply i took a parabolic dish (satellite one) , i cut it in 2 perfect pieces...