Find the vertex, focus, and directrix of the parabola with the given equation.(y + 1)2 = -20(x + 3)
A. vertex: (3, 1)
focus: (-2, 1)
directrix: x = 8
B. vertex: (-3, -1)
focus: (-8, -1)
directrix: x = 2
C. vertex: (-3, -1)
focus: (2, -1)
directrix: x = -8
D. vertex: (-1, -3)
focus: (-6, -3)
directrix: x = 4
Answer: B
You might also like to view...
Solve the equation by first clearing it of fractions or decimals.
y - 
= 
(y - 2)
A. y = - 
B. y = - 
C. y = 
D. y = 
Solve the problem.The following data set gives the average home value, in dollars, for a city at 5-year intervals.
Determine where f is increasing or decreasing.
A. f is decreasing for the given x values. B. f is increasing until 1980, then f is decreasing for remainder of x-values. C. f is constant for the given x-values. D. f is increasing for the given x-values.
Find the product.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Add or subtract. Simplify your answer to lowest terms.
- 
A. 
B. 
C. 
D. x + 1