Rewrite the equation in a rotated x'y'-system without an x'y' term. Express the equation involving x' and y' in the standard form of a conic section.x2 + xy + y2 - 3y - 6 = 0
A. 
+ 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. y'2 = -18x'
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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A. x = y + 2 B. y = x - 10 C. y = x + 2 D. None
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. How many times does it cross the curve?
?
?
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