Find the focus and the directrix of the parabola.y = 2x2 - 8x + 7
A. Focus: 
; directrix: y = - 
B. Focus: 
; directrix: y = - 
C. Focus: (2, 7); directrix: x = 9
D. Focus: (2, 1); directrix: x = -3
Answer: A
Mathematics
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is an irrational number for any prime number p.
A. True B. False
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Solve the problem.If you are dealt 6 cards from a shuffled deck of 52 cards, find the probability of getting 3 jacks and 3 aces.
A. 
B. 
C. 
D. 
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Solve the equation.
= 
A. 
B. {28}
C. {14}
D. 
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Find the product of the sum and difference of two terms.
A. x2 - 
B. x2 - 9x - 9
C. x2 + 9x - 9
D. x2 - 9
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