Equation of circle - Practice | Baamboozle - Baamboozle

The art park is represented by: (𝑥 − 8)2 + (𝑦 + 1)2 = 9. Identify the center and radius. Sketch the circle.

Center (8, −1), r = 3

Center (1, 6), r = 10

A circular fountain satisfies: 𝑥2 + 𝑦2 − 10𝑥 − 14𝑦 + 65 = 0. Rewrite in standard form. Find the center and radius.

The landing area is given by: (𝑥 + 7)2 + (𝑦 + 3)2 = 16. Sketch the zone.

Center (−7, −3), r = 4

A lake is modeled by: 𝑥2 + 𝑦2 = 81. Sketch the lake.

Center (0, 0), r = 9

Center (−4, 2), r = 6

Center (3, −5) r = 7

An art installation has equation 𝑥2 + 𝑦2 + 4𝑥 − 10𝑦 − 20 = 0. A visitor is standing at point (3, 1). Determine whether the visitor is inside, on, or outside the circular boundary.

A radar system covers a circular area described by 𝑥2 + 𝑦2 − 6𝑥 + 8𝑦 − 11 = 0. An aircraft is located at point (1, –2). Determine whether the aircraft is inside, on, or outside the radar coverage.

A circular sports field has equation ( 𝑥 − 4)2 + ( 𝑦 + 1)2 = 25. A ball lands at point (7,3). Determine whether the ball is inside, on, or outside the field.

A robot operates within a circular boundary centered at (2,3) with radius 5 meters. The robot is currently at (6,6). Is it inside, on, or outside the boundary?

A circular restricted area is centered at (0,0) with radius 10 meters. A person stands at point (6,8). Determine whether the person is inside, on, or outside the restricted area.

A circular performance stage has center (2, –7) and radius 13 meters. Write the equation in both standard and general form.

A security camera placed at (–8, –4) covers a circular area with radius 9 meters. Write the equation of the coverage area in general form.

A Ferris wheel is centered at (3, 6) with radius 15 meters. Write its equation in standard form and convert it to general form.

A circular water tank is centered at (–5, 2) with a radius of 10 meters. Write the equation in general form.

A circular playground has its center at (4, –3) and radius 7 meters. Write the equation of the circle in standard form and then express it in general form.

A circular flower garden is designed with its center at the origin and diameter 18 meters. Write the equation of the garden’s boundary.

A radar system is installed at coordinate (0,0). It can detect objects within a radius of 150 km. Write the equation representing the radar detection area.

A school designs a small circular jogging track centered at the origin with a radius of 25 meters. Write the equation of the track.

A drone takes off from the school courtyard located at the origin. It is programmed not to fly more than 12 meters away. Write the equation representing the maximum flying boundary.

A circular fountain is built at the center of a park located at coordinate (0,0). The water sprays up to 6 meters in all directions. Write the equation of the fountain’s boundary.