Intro to Conics

What is the green dashed line called?

• asymptote

• directrix

• axis of symmetry

• line of dashes

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

Is the major axis of the ellipse horizontal or vertical?

• horizontal

• vertical

• both

• neither

What is the length of the minor axis?

• 3

• 6

• 2

• 4

What is the equation used to determine the focus points on an ELLIPSE?

• c² = a² + b²

• c² = a² - b²

• 1/4p

• (x-h)² + (y-k)² = r²

Identify this conic section

• Circle

• Ellipses

• Parabola

• Hyperbola

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

• Opens side to side

• Opens up and down

What conic section is pictured?

• Circle

• Ellipse

• Parabola

• Hyperbola

Which conic's equation has only 1 squared term?

• Parabola

• Circle

• Ellipse

• Hyperbola