Find the vertex, the focus, and the directrix of the parabola.y2 - 8x + 2y + 9 = 0
A. V: 
; F: 
; D: y = 
B. V: (5, 1); F: (9, 1); D: y = 7
C. V: 
; F: (-1, 1); D: y = 3
D. V: (1, -1); F: (3, -1); D: x = -1
Answer: D
Mathematics
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One period of the given function is defined below. Determine whether the function is even, odd, or neither.
A. Even B. Neither C. Odd
Mathematics
Solve the equation by completing the square.x2 + 8x - 33 = 0
A. {-11, 3}
B. {-11, -22}
C. {-
, 
}
D. {-3, 11}
Mathematics
Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.1.3x + 3.5 > 0.5x - 0.66
A. x > -5.19; (-5.19, ?)
B. x > -5.2; (-5.2, ?)
C. x < -5.19; (-?, -5.19)
D. x < -5.2; (-?, -5.2)
Mathematics
Find the least common multiple (LCM) of the pair of numbers.28 and 40
A. 280 B. 68 C. 4 D. 1120
Mathematics