Q4 Review

Find the equation of the figure shown.

• (x-5)² + (y-3)² = 25
• (x+5)²/4 + (y+3)²/9 = 1
• (x-5)²/2 + (y-3)²/3 = 1
• (x-5)²/4 + (y-3)²/9 = 1

Which is the equation of a circle with center (2, 1) that passes through (2, 4)?

• (x – 2)² + (y – 1)² = 9
• (x – 2)² + (y – 1)² = 3
• (x + 2)² + (y + 1)² = 9
• (x + 2)² + (y + 1)² = 3

• (x - 3)²  + (y + 4)² = 9
• (x - 3)²  + (y + 4)² = 3
• (x)²  + (y)² = 9
• (x - 1)²  + (y + 1)² = 7

What conic section is pictured?

• Circle
• Ellipse
• Parabola
• Hyperbola

Find the foci of this ellipse?

• (8, -1), (0, -1)
• (4±√7, -1)
• (4, 3), (4, -5)
• (4, -1)

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 is the directrix of the parabola, careful to put in proper form
(x - 4)² = 8(y + 3)

• y = - 3
• x= 5
• y= - 5
• y= 2

What is the focus of the following parabola? careful to put in proper form!
(y + 5)² = -12 (x - 2)

• (2, - 5)
• ( -5, 2)
• (1 , -5 )
• (-1, -5 )

Given the equation of the parabola, where would the VERTEX be?

• ( 3 , 3)
• (24, 3)
• ( - 24, 3)
• (-3, 3)

If c = <-5, 4> and d = <8, 0>, calculate 2c + d

• <-2, 8>

• <-2, 0>

• <6, 8>

• <6, 0>