PreCalculus Final

What is the equation used to find the focal points on an ELLIPSE?

• c² = a² + b²
• c² = a² - b²
• 1/4d
• (x-h)² + (y-k)² = r²

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

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

Which is the equation to find c on an HYPERBOLA?

• c² = a² + b²

• c² = a² - b²

• 1/4d

• (x-h)² + (y-k)² = r²

Write the equation of the hyperbola with co-vertices at (4, 0) and (-4, 0) and foci at (0, 5) and (0, -5).

• 
• 
• 
• 

Determine the equation of the hyperbola.

What are the vertices of the hyperbola?

• (0, 5) and (0, -5)
• (5, 0) and (-5, 0)
• (0, 25) and (-25, 0)
• (0, 0) and (0, 5)

Identify this conic section

• Circle
• Degenerate Conic Section
• Parabola
• Hyperbola

• vertical

• horizontal

Determine the equation of the hyperbola.