Shweta Patil
Walchand College of Engineering (WCE), Sangli
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Mona Gladys
St Joseph's College (St Joseph's College), Bengaluru
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11 Other formulas that you can solve using the same Inputs

slope 1 of parabola given fixed point(P,Q) and tangent (y-P)=m(x-Q)
slope 1 of parabola= (y coordinate of fixed point on parabola+sqrt((y coordinate of fixed point on parabola*y coordinate of fixed point on parabola)-(2*focal distance of parabola*x coordinate of fixed point on parabola)))/(2*x coordinate of fixed point on parabola) GO
slope 2 of parabola given fixed point(P,Q) and tangent (y-P)=n(x-Q)
slope 2 of parabola= (y coordinate of fixed point on parabola-sqrt((y coordinate of fixed point on parabola*y coordinate of fixed point on parabola)-(2*focal distance of parabola*x coordinate of fixed point on parabola)))/(2*x coordinate of fixed point on parabola) GO
Directrix of parabola with its vertex at ( h, k) opening vertically
Directrix of parabola with its vertex at ( h, k) = y coordinate of vertex of parabola-(1/4*focal distance of parabola) GO
y coordinate of focus of parabola with its vertex at ( h, k) opening vertically
y coordinate of vertex of parabola= (y coordinate of vertex of parabola)+ (1/4*focal distance of parabola) GO
x coordinate of focus of parabola with its vertex at ( h, k) opening horizontally
x coordinate of focus of parabola= x coordinate of vertex of parabola+ (1/4*focal distance of parabola) GO
Distance from the vertex to the focus of parabola
Distance from the vertex to the focus of parabola= 1/(4*focal distance of parabola) GO
y coordinate of Extremities of latusractum for parabola y2 = 4ax
y coordinate of Extremities of latusractum= (2*focal distance of parabola) GO
Distance between directrix and latus rectum for parabola y2 = 4ax
Distance between directrix and latus rectum= 2*focal distance of parabola GO
Distance between the directrix and vertex for parabola y2 = 4ax
Distance between the directrix and vertex= focal distance of parabola GO
x coordinate of focus of parabola with its vertex at ( h, k) opening vertically
x coordinate of focus of parabola=x coordinate of vertex of parabola GO
axis of symmetry of parabola with its vertex at ( h, k), opening vertically
axis of symmetry of parabola = x coordinate of vertex of parabola GO

1 Other formulas that calculate the same Output

Directrix of parabola with its vertex at ( h, k) opening vertically
Directrix of parabola with its vertex at ( h, k) = y coordinate of vertex of parabola-(1/4*focal distance of parabola) GO

Directrix of parabola with its vertex at ( h, k) opening horizontally Formula

Directrix of parabola with its vertex at ( h, k) = x coordinate of vertex of parabola- (1/4*focal distance of parabola)
d= h- (1/4*a)
More formulas
Length of latus rectum of parabola GO
Slope of normal at (x1, y1) to parabola y^2=4ax GO
slope of tangent at (x1,y1) to parabola y^2=4ax GO
Slope of tangent of parabola when slope of normal is given GO
Slope of normal of parabola when slope of tangent is given GO
Finding S1 to help find location of a point w.r.t. a parabola y^2=4ax GO
Length of the chord intercepted by the parabola y^2=4ax on the line y = mx + c GO
length of the latusrectum if length of the focal segments are given GO
tan of angle θ between tangents at two points on the parabola y2 = 4ax GO
Diameter bisecting chords of slope m to the parabola y2 = 4ax GO
Product of ordinates of 2 points,If normal at 2 point intersect at a 3rd point on y2 = 4ax GO
Distance from the vertex to the focus of parabola GO
y coordinate of focus of parabola with its vertex at ( h, k) opening vertically GO
x coordinate of focus of parabola with its vertex at ( h, k) opening vertically GO
Directrix of parabola with its vertex at ( h, k) opening vertically GO
axis of symmetry of parabola with its vertex at ( h, k), opening vertically GO
x coordinate of focus of parabola with its vertex at ( h, k) opening horizontally GO
y coordinate of focus of parabola with its vertex at ( h, k) opening horizontally GO
axis of symmetry of parabola with its vertex at ( h, k), opening horizontally GO
slope 1 of parabola given fixed point(P,Q) and tangent (y-P)=m(x-Q) GO
slope 2 of parabola given fixed point(P,Q) and tangent (y-P)=n(x-Q) GO
Distance between the directrix and vertex for parabola y2 = 4ax GO
Distance between directrix and latus rectum for parabola y2 = 4ax GO
y coordinate of Extremities of latusractum for parabola y2 = 4ax GO
x coordinate of Extremities of latusractum for parabola y2 = 4ax GO
x coordinate of Extremities of latusractum for parabola x2 = -4ay GO
x coordinate of Extremities of latusractum for parabola x2 =4ay GO
x coordinate of Extremities of latusractum for parabola y2 =-4ax GO
y coordinate of Extremities of latusractum for parabola x2 = -4ay GO
y coordinate of Extremities of latusractum for parabola x2 =4ay GO
y coordinate of Extremities of latusractum for parabola y2 =-4ax GO
x coordinate of Point of tangency of parabola GO
y coordinate of Point of tangency of parabola GO
Focal distance of parabola if length of latusractum is given GO
focal distance of parabola if distance between directrix and latus rectum GO
slope of parabola given diameter and x coordinate of focus of parabola GO

How to calculate the directrix of parabola with its vertex at ( h, k)?

A parabola is the set of points in a plane that are the same distance from a given point and a given line in that plane. The given point is called the focus, and the line is called the directrix.

How to Calculate Directrix of parabola with its vertex at ( h, k) opening horizontally?

Directrix of parabola with its vertex at ( h, k) opening horizontally calculator uses Directrix of parabola with its vertex at ( h, k) = x coordinate of vertex of parabola- (1/4*focal distance of parabola) to calculate the Directrix of parabola with its vertex at ( h, k) , Directrix of parabola with its vertex at ( h, k) opening horizontally is defined as the line which is at same distance from set of points of parabola. Directrix of parabola with its vertex at ( h, k) and is denoted by d symbol.

How to calculate Directrix of parabola with its vertex at ( h, k) opening horizontally using this online calculator? To use this online calculator for Directrix of parabola with its vertex at ( h, k) opening horizontally, enter x coordinate of vertex of parabola (h) and focal distance of parabola (a) and hit the calculate button. Here is how the Directrix of parabola with its vertex at ( h, k) opening horizontally calculation can be explained with given input values -> 0.75 = 2- (1/4*5).

FAQ

What is Directrix of parabola with its vertex at ( h, k) opening horizontally?
Directrix of parabola with its vertex at ( h, k) opening horizontally is defined as the line which is at same distance from set of points of parabola and is represented as d= h- (1/4*a) or Directrix of parabola with its vertex at ( h, k) = x coordinate of vertex of parabola- (1/4*focal distance of parabola). x coordinate of vertex of parabola is just a number present at vertex on x axis of parabola. and focal distance of parabola is the distance from vertex of parabola to the focus.
How to calculate Directrix of parabola with its vertex at ( h, k) opening horizontally?
Directrix of parabola with its vertex at ( h, k) opening horizontally is defined as the line which is at same distance from set of points of parabola is calculated using Directrix of parabola with its vertex at ( h, k) = x coordinate of vertex of parabola- (1/4*focal distance of parabola). To calculate Directrix of parabola with its vertex at ( h, k) opening horizontally, you need x coordinate of vertex of parabola (h) and focal distance of parabola (a). With our tool, you need to enter the respective value for x coordinate of vertex of parabola and focal distance of parabola and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Directrix of parabola with its vertex at ( h, k) ?
In this formula, Directrix of parabola with its vertex at ( h, k) uses x coordinate of vertex of parabola and focal distance of parabola. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Directrix of parabola with its vertex at ( h, k) = y coordinate of vertex of parabola-(1/4*focal distance of parabola)
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