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2020-10-20

What is an equation of a circle with its center at 3 and a radius of 4?

What is an equation of a circle with its center at 3 and a radius of 4?

1 Answer. The equation of the circle with center (−3,−4) and radius 3,in standard form, is: (x+3)2+(y+4)2 = 9.

What is the standard equation of a circle with center 3 and radius 2?

1 Answer. The standard form of the equation of the circle would be (x−3)2+(y+2)2=9 .

Which is the equation for a circle with center at?

A common form to write the equation of a circle in is the center-radius form. The center-radius form is: (x−h)2+(y−k)2=r2 Here, the center point is denoted by (h,k) and r is the radius of the circle.

What is the equation of a circle of radius r centered at the origin?

The equation of a circle of radius r and centre the origin is x2 + y2 = r2 .

What is the equation of a circle with Centre 0 0 and diameter 6 units?

Hence, the equation of the circle is x2+y2=36.

What is the equation of a circle with center (- 2 3 and radius 5?

The standard equation of a circle is. where (a ,b) are the coordinates of the centre and r, the radius. substitute these values into the standard equation. ⇒(x−2)2+(y+3)2=25 is the equation of the circle.

What is the equation of a circle with center 4 7 and radius 6?

(x + 4)2 + (y – 7)2 = 6.

Which point lies on the circle that has a center at (- 2 3 and a radius of 4?

The radius of the circle is 4, so any point that is 4 units away from the point (-2,3) would be considered a correct answer.

Is the point (- 3/5 inside outside or on the circle with equation?

Therefore, the given point lies outside the circle.

Does the point (- 3 2 lie inside outside or on a circle with center 4 0 and radius 5 units?

Answer: The point (-3, 2) lies outside of the circle centered at (4, 0) with radius 5. Since 7.28 > 5, the point (-3, 2) lies outside of the circle centered at (4, 0) with radius 5.

What is the radius of the circle with the equation x2 y2 25?

The center of the circle is at (0,0) and, when x = 0, the circle points are at y=−5 and y=5 . So, the radius of the circle is r = 5.

What is the diameter of the circle whose equation is x2 y2 25?

The equation given corresponds to r=5 . Since the diameter is twice the radius, the diameter is 10.