A line perpendicular to the axis of symmetry used in the definition of a parabola. A parabola is defined as follows: For a given point, called the focus, and a given line not through the focus, called the directrix, a parabola is the locus of points such that the distance to the ...
However there is a more technical definition of a parabola that has to do with a special point, called the focus of the parabola, and a special line, called the directrix of the parabola.Answer and Explanation: The directrix of a parabola is a line for which every point on the parabola ...
Parabola is a quadratic equation that has a curve that opens up or down that represents a function in the form of {eq}f(x)=ax^2+bx+c {/eq} where a, b, and c are constants that will shape the parabola. The major parts of the parabola are the focus, vertex, and the directrix....
If (2,0) is the vertex and y-axis the directrix of a parabola then its focus is View Solution Knowledge Check If (2,0) is the vertex and the y− axis is the directrix of a parabola, then where is its focus? A(2,0) B(−2,0) C(4,0) D(−4,0)Submit If (2,0) ...
The directrix of a parabola is a line perpendicular to the axis of symmetry of the parabola. In a parabola that opens upward in the direction of the positive y-axis, the directrix of the parabola is a horizontal line. Answer...
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A straight line used in constructing a curve such as a parabola. The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. ...
If the ratiorrof the distance of any point on the conic section from focus to its distance from directrix is equal to 1, then the conic section is a parabola. If it is less than 1, then it is ellipse; and if it is greater than 1, then the conic section is a hyperbola ...
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A parabola is given by the equation y2 = -24x.find the directrix and focus of the parabolaFollow • 2 Add comment 1 Expert Answer Best Newest Oldest Arthur D. answered • 05/09/17 Tutor 5.0 (247) Mathematics Tutor With a Master's Degree In Mathematics About this tutor › ...