Find the focus and the directrix of the parabola.x = -2y2 + 4y - 7
A. Focus: (-7, -5); directrix: x = -3
B. Focus: 
; directrix: x = - 
C. Focus: 
; directrix: x = - 
D. Focus: (11, -5); directrix: x = 9
Answer: C
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Find the area of the region specified by the integral(s).
+ 
A. 128 B. 4 C. 64 D. 8
A board 5 feet long is cut into two pieces such that the length of one piece is two-thirds of the length of the other piece. Find the length of the shorter piece of board.__________ feet
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A ladder is resting against a wall. The top of the ladder touches the wall at a height of 15 feet. Find the length of the ladder if the length is 5 feet more than its distance from the wall.
A. 25 ft B. 15 ft C. 30 ft D. 20 ft
Graph the polynomial function. f(x) = x4 - 9x2
A. 
B. 
C. 
D. 