Find the parametric equations for the line tangent to the curve at the given point.r(t) = 
at r(0)
A. x = -2t, y = -7, z = -3
B. x = -2, y = -7t, z = -3t
C. x = -2t, y = -7t, z = -3
D. x = 2, y = -7t, z = 3t
Answer: B
Mathematics
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A. x2 - 6xy - 108y2 B. x2 - 3xy - 3y2 C. x - 3xy - 108y D. x2 - 3xy - 108y2
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Solve.xy - x2 = -20x - 2y = 3
A. (-5, -1) and 
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C. (5, 1) and 
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In 
, 
and in 
, 
. If AB = XY and CD = ZW, then:
A. 
B. 
C. and have the same perimeter.
D. and have the same area.
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