# Circle

From the equation of a circle:

Calculate the coordinates of the center of the circle S[x0, y0] and radius of the circle r.

Result

x0 =  -5
y0 =  5
r =  4

#### Solution:

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

#### To solve this example are needed these knowledge from mathematics:

For Basic calculations in analytic geometry is helpful line slope calculator. From coordinates of two points in the plane it calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of segment, intersections the coordinate axes etc. Looking for help with calculating roots of a quadratic equation? Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Next similar examples:

1. Square root 2
If the square root of 3m2 +22 and -x = 0, and x=7, what is m?
2. Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
3. Roots
Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
Quadratic equation ? has roots x1 = 80 and x2 = 78. Calculate the coefficients b and c.
Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
6. Solve 3
Solve quadratic equation: (6n+1) (4n-1) = 3n2
7. Equation
Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
8. Discriminant
Determine the discriminant of the equation: ?
9. Equation
Eequation f(x) = 0 has roots x1 = 64, x2 = 100, x3 = 25, x4 = 49. How many roots have equation f(x2) = 0 ?
10. Equation with abs value
How many solutions has the equation ? in the real numbers?