Algebra 2 Conic Sections

Write the standard equation of the circle with the given center and radius; center (0,0) and radius: 3

• x²+y²=3

• x²+y²=6

• x²+y²=9

Choose the equation that represents the circle with center (5, 9) and goes through (2, 9)

• (x+5)²+(y+9)²=3

• (x-5)²+(y-9)²=3

• (x+5)²+(y+9)²=9

• (x-5)²+(y-9)²=9

Why are Conic Sections given this name?

• They are the cross-sections given when a cone is sliced.

• Because it's part of 'da rules'

• They are the cross-sections given when any 3D image is sliced.

Identify this conic section

• Circle

• Degenerate Conic Section

• Parabola

• Hyperbola

What conic section is pictured?

• Circle

• Ellipse

• Parabola

• Hyperbola

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)

• (-3, -2)

• (-2, -3)

• (2, 3)

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4

• 2

• 3

• 16

What is the radius of the circle given by the equation (x-7)² + (y+3)² = 25?

• 3

• 5

• 10

• 25

What is the center of the circle with equation x² + y² = 1?

• (1, 1)

• (0, 0)

• 1

What is the equation of the circle?

• (x+1)² + (y +1)² = 3

• (x+1)² + (y -1)² = 3

• (x+1)² + (y +1)² = 9

• (x-1)² + (y -1)² = 9