What is the standard form of the equation of a circle whose diameter is 20 units and whose center is (−1,7)? Drag an expression or value to the boxes to correctly complete the equation.

The equation of the circle is

The standard form of the equation of a circle is:

From the question, we have:

So, the equation becomes

Substitute values for (a), (b) and (r)

Express 10^2 as 100

Hence, the equation of the circle is

Read more about equations of circles at:

link

Step-by-sep explanation:

Given:

Diameter of circle = 20 units

Center of circle = (-1, 7)

Standard form of the equation of a circle is expressed in the center-radius form as:

,

Where,

h = -1

k = 7

r = ½ of diameter = ½(20) = 10 units

Plug in the values into the equation

this is false ^.^ lol

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. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.