The equation for a circle with a center (-2, 8) and a radius of 9 will be (x + 2)² + (y − 8)² = 81.
<h3>What is an equation of a circle?</h3>
A circle can be characterized by its center's location and its radius's length.
Let the center of the considered circle be at the (h,k) coordinate.
Let the radius of the circle be 'r' units.
Then, the equation of that circle would be:
(x - h)² + (y - k)² = r²
Write an equation for a circle with a center (-2, 8) and a radius of 9.
Then the equation will be
(x + 2)² + (y − 8)² = 9²
(x + 2)² + (y − 8)² = 81
Learn more about the equation of a circle here:
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Ax^2 + bx + c = 0
x^2 + x + 2 = 0
a = 1
b = 1
c = 2
b^2 - 4ac
1^2 - 4(1)(2)
= 1 - 8
= -7
The value of the discriminant is -7.
Your answer would be
m=49n/9
n=9m/49
That's what I got. Hope that helps!
