All About Circles 1.2A

What is the center for the circle with this equation x²+y²+4x+6y-36=0? Show your work on paper!

• (-2,5)

• (2,7)

• (-2,-3)

If my diameter is 19 inches, what is my radius?

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

The _____________ of a circle is two times the radius. 

• chord
• diameter
• circumference 

Distance: Find the length between ( 1, 3) and (5, 6)

• 3

• 4

• 5

• 6

Tags

CCSS.HSG.GPE.B.7

Midpoint: Find the midpoint of the segment with the endpoints:(1, 7) and (9, 0) Show your work on paper! Formula is on the board.

• (4, 3.5)

• (3.5, 5)

• (3.5, 4.5)

• (5, 3.5)

Circles: Write the equation of a circle with center (7, 0) with radius 3.

• (x - 7)² + y² = 9

• x² + (y -7)² = 9

• (x - 7)² + y² = 3

• x² + (y -7)² = 3

Tags

CCSS.HSG.GPE.A.1

Circles: What are the coordinates of the center and the radius of the circle with equation:

(x - 4)² + (y - 3)² = 25 ?

• Center (4,3)

  Radius = 5 units

• Center (4,3)

  Radius = 25 units

• Center (-4,-3)

  Radius = 25 units

• Center (-4,-3)

  Radius = 5 units

Tags

CCSS.HSG.GPE.A.1

Circles: Which graph corresponds to

(x-8)²+ (y+2)²=

• A

• B

• C

• D

Tags

CCSS.HSG.GPE.A.1

Circles: What is the equation of the circle, with centre (-4,5) and radius 6 units?

• (x - 4)^2 + (y + 5)^2 = 6

• (x - 4)^2 + (y + 5)^2 = 36

• (x + 4)^2 + (y - 5)^2 = 6

• (x + 4)^2 + (y - 5)^2 = 36

Tags

CCSS.HSG.GPE.A.1