Write equations of the horizontal and the vertical lines that pass through the given point.
A. horizontal: y = 
x;
vertical: x = -4y
B. horizontal: y = -4;
vertical: x = 
C. horizontal: y = - 
;
vertical: x = -4
D. horizontal: y = 
;
vertical: x = -4
Answer: D
Mathematics
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 0) for cos xy + yex = 0.
A. 
B. 0
C. e
D. 1
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Graph the function.f(x) = -(x - 3)3 
A. 
B. 
C. 
D. 
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Solve the equation by completing the square.x2 + 8x = 7
A. {4 + 
}
B. {-4 - 
, -4 + 
}
C. {-4 - 1
, -4 + 1
}
D. {-1 - 
, -1 + 
}
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Find the LCD for the rational expression.
, 
A. 7x + 2 B. 7(x + 2) C. 7 D. x + 2
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