Equation of Circle Standard Form and Complete the Square

What does (h,k) standard for in the standard circle equation?

• (h,k) is the center of the circle

• (h,k) is a point on the circle.

• (h,k) is a point that we guess and find

• (h,k) is the distance of the circle

Tags

CCSS.HSG.GPE.A.1

What does the r in the standard equation stand for?

• r is the distance of the circle

• r is the radius of the circle

• r is the x coordinate of the center of the circle

• r is the y coordinate of the center of the circle

Tags

CCSS.HSG.GPE.A.1

Tags

CCSS.HSG.GPE.A.1

Complete the square to determine the equation of the circle in standard form: x^2+y^2+4x+6y-36=0

Tags

CCSS.HSG.GPE.A.1

• (-2,5), r=6

• (2,7), r=6

• (2,3), r=7

• (-2,-3), r=7

Tags

CCSS.HSG.GPE.A.1

Complete the square to determine the center and radius for the circle in this equation: x^2+y^2-10x+8y-8=0

• C = (5,-4)

  r = 7

• C = (-4,5)

  r = 49

• C = (-5,4)

  r = 7

• C = (5,-4)

  r = 49

Tags

CCSS.HSG.GPE.A.1

• 4

• 8

• 2

• 9

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CCSS.HSG.GPE.A.1

What is the equation of this circle in standard form?

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CCSS.HSG.GPE.A.1

What is the equation in standard form of this circle?

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CCSS.HSG.GPE.A.1

What is the equation of this circle in standard form?

Tags

CCSS.HSG.GPE.A.1