Points Inside, Outside or on a Circle

Is the point (-3 , 5) inside, outside or on the circle with equation (x+2)² + (y-4)² = 9?

• Inside the Circle

• Outside the Circle

• On the Circle

Prove or disprove that the point (3,4) lies on the circle centered at the origin and has a radius of 5.

• (3,4) lies on the circle

• (3,4) lies outside the circle

• (3,4) lies inside the circle

Does the point (4,5) lie on the circle whose center is (-2,-2) and radius 9?

• yes

• No

Is the point (3 , 5) inside, outside or on the circle with equation x² + y² = 9?

• Inside the Circle

• Outside the Circle

• On the Circle

Match the following

• Point of Tangency

• Central Angle

• Semi Circle

• Secant

• Chord

• chord

• 
• radius

• 
• diameter

• 

For what value of K is the point (1 , K) inside the circle with equation x² + y² = 4?

• K = 1

• K = 2

• K = 3

• K = 4

How do you determine if a point is inside the circle?

• See if value after substitution for (x, y) = r²

• See if value after substitution for (x, y) > r²

• See if value after substitution for (x, y) < r²

A meteorite damaged a portion of a farm expressed by the equation (x - 6)² + (y - 7)² = 16. Which item on the farm was not damaged by the meteorite?

• The Silo located at
  (2, 4)

• The Barn located at
  (4, 6)

• The Pigpen located at
  (8,9)

Prove or disprove that the point (8,-3) lies on the circle centered at (-4,3) and has a radius of 13.

• (8,-3) lies on the circle

• (8,-3) lies outside the circle

• (8,-3) lies inside the circle