A) \[x+y-1=0\]
B) \[x-y-1=0\]
C) \[x+y+1=0\]
D) \[x-y+1=0\]
Correct Answer: C
Solution :
\[\because \] Parabola passes through the point (1,?2), then \[4=4a\Rightarrow a=1\] Formula for tangent, \[y{{y}_{1}}=2a(x+{{x}_{1}})\]Þ \[-2y=2(x+1)\] Required tangent is, \[x+y+1=0\].You need to login to perform this action.
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