Determine If a Point Lies on a 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 (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

Determine which point lies on the circle with equation x²+y²=49

• (√11,3)

• (0,-7)

• (-4, √13)

• (8,0)

Determine if the point (9, 12) satisfies the equation x^2 + y^2 = 225

• Not sure

• No

• Maybe

• Yes

Determine if the point (-5, 12) satisfies the equation x^2 + y^2 = 169

• Maybe

• Yes

• No

• Not sure

Determine if the point (3, 4) satisfies the equation x^2 + y^2 = 25

• Not sure

• No

• Yes

• Maybe

Does the point (4,5)  lie on the line 
(x+2)²+(y+2)²=81
Hint substitute x=4 and y=5 and see if the left side is equal the right side.

• 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

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