# What is an example of a circle equation?

## What is an example of a circle equation?

The general equation of a circle is (x – h)2 + (y – k)2 = r2, where (h, k) represents the location of the circle’s center, and r represents the length of its radius. Circle A first has the equation of (x – 4)2 + (y + 3)2 = 29.

**What is circle in analytic geometry?**

A circle is the set of all points that are an equal distance (radius) from a given point (centre). In other words, every point on the circumference of a circle is equidistant from its centre. The radius of a circle is the distance from the centre of a circle to any point on the circumference.

**How do you find the equation of a circle analytical geometry?**

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. So add 21 to both sides to get the constant term to the righthand side of the equation. Then complete the square for the y terms.

### Where is analytical geometry found in real life?

Analytic geometry is used in physics and engineering, and also in aviation, rocketry, space science, and spaceflight. It is the foundation of most modern fields of geometry, including algebraic, differential, discrete and computational geometry.

**What is the general equation of circle?**

What is the General Equation of Circle? The general form of the equation of circle is: x2 + y2 + 2gx + 2fy + c = 0. This general form of the equation of circle has a center of (-g, -f), and the radius of the circle is r = √g2+f2−c g 2 + f 2 − c .

**How do you tell if an equation is a circle?**

How to Identify the Four Conic Sections in Equation Form

- Circle: When x and y are both squared and the coefficients on them are the same — including the sign.
- Parabola: When either x or y is squared — not both.
- Ellipse: When x and y are both squared and the coefficients are positive but different.

#### What is the general form of circle?

**What is standard form for a circle?**

Standard form for the equation of a circle is (x−h)2+(y−k)2=r2. The center is (h,k) and the radius measures r units. To graph a circle mark points r units up, down, left, and right from the center.

**How do you find the equation of a circle given two points?**

The equation of a circle with center (h,k) and radius r units is (x−h)2+(y−k)2=r2 .

## How is analytical geometry used in real life?

Analytical Geometry has vast applications in our life both directly and indirectly. It has been used in Medicine, Power Generation and in Construction. It has helped us to improve accuracy in medicine field for the betterment of the treatment. In Power Generation it has helped us to create power in large number.

**What is analytical geometry used for?**

analytic geometry, also called coordinate geometry, mathematical subject in which algebraic symbolism and methods are used to represent and solve problems in geometry. The importance of analytic geometry is that it establishes a correspondence between geometric curves and algebraic equations.

**Which is the best description of analytic geometry?**

Analytic Geometry is a branch of algebra, a great invention of Descartes and Fermat, which deals with the modelling of some geometrical objects, such as lines, points, curves, and so on. It is a mathematical subject that uses algebraic symbolism and methods to solve the problems.

### How is an ellipse related to a circle?

In analytic geometry, an ellipse is a mathematical equation that, when graphed, resembles an egg. An ellipse has two focal points. The distance apart between the two points is one way of describing a particular ellipse. If the two points come together the ellipses become a circle with the point at its center.

**How are coordinate axes used in analytic geometry?**

In three-dimensional space, we consider three mutually perpendicular lines intersecting in a point O. these lines are designated coordinate axes, starting from 0, and identical number scales are set up on each of them. Analytic geometry is widely used in the fields such as Engineering and Physics.

**Which is a special type of ellipse in geometry?**

The circle is really a special type of ellipse. In analytic geometry, an ellipse is a mathematical equation that, when graphed, resembles an egg. An ellipse has two focal points. The distance apart between the two points is one way of describing a particular ellipse.