What is H and K in the circle equation?

Find The Equation Of A Circle : Example Question #3 Explanation: The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle.

Why is x2 y2 r2?

x2 + y2 = r2 , and this is the equation of a circle of radius r whose centre is the origin O(0, 0). The equation of a circle of radius r and centre the origin is x2 + y2 = r2 .

What does H stand for in H k )?

(h,k) is the center of the circle. (h,k) is a point on the circle. (h,k) is a point that we guess and find. (h,k) is the distance of the circle. Q.

What do HK and r represent in the standard equation of a circle?

We know that the general equation for a circle is ( x – h )^2 + ( y – k )^2 = r^2, where ( h, k ) is the center and r is the radius.

What is H K in circle?

The standard form of a circle’s equation is (x-h)² + (y-k)² = r² where (h,k) is the center and r is the radius.

What is the formula of X² y²?

The formula of x²-y² is (x+y)(x-y).

What is x2 y2 equal to?

= (x + y)^2 – 2xy is right ans.

Why is the center of a circle called H K?

What are the Coordinates for the Center of the Circle and the Length of the Radius? The coordinates of the center of the circle represent the distance of the center point from the x-axis and y-axis respectively. It is generally denoted in the form of (h, k), where h and k represent the x and y coordinates respectively.

What does HK represent in the graph of a circle?

The general equation for a circle is (x – h)² + (y – k)² = r², where (h, k) represents the center of the circle, r is the radius, and x and y form the coordinates of all the points on the circle’s perimeter.

What is the standard form of circle at the origin and given HK?

What does HK mean in a circle?

Why is K used for vertical?

K values are preferred to be used when design a new vertical curve because it provides a better safety distance.

What is the equation of a circle whose center is at HK?

The equation of a circle written in the form (x−h)2+(y−k)2=r2 where (h,k) is the center and r is the radius.

What is x² +y²?

Answer: (x2 + y2) = (x + y)2 – 2xy or (x – y)2 + 2xy.

What is the value of X² y²?

The value of (x^2 – y^2) = ( x + y) ( x – y ) .

What is x² y²?

x²-y² = (x+y)

Why do we use H and K in math?

When written in “vertex form”: (h, k) is the vertex of the parabola, and x = h is the axis of symmetry. the h represents a horizontal shift (how far left, or right, the graph has shifted from x = 0). the k represents a vertical shift (how far up, or down, the graph has shifted from y = 0).

How do you find K and ah?

the h represents a horizontal shift (how far left, or right, the graph has shifted from x = 0). the k represents a vertical shift (how far up, or down, the graph has shifted from y = 0). notice that the h value is subtracted in this form, and that the k value is added.