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If the curve \( y=a x^{2}+b x+c, x \in R \), passes through the point \( (1,2) \) and the tangent line to this curve at …

Q1

If the curve \( y=a x^{2}+b x+c, x \in R \), passes through the point \( (1,2) \) and the tangent line to this curve at origin is \( y=x \), then the possible values of \( a, b, c \) are:

[JEE Main 2021, 24 Feb (Shift 2)]

a

\( a=-1, b=1, c=1 \)

b

\( a=1, b=1, c=0 \)

c

\( a=\frac{1}{2}, b=\frac{1}{2}, c=1 \)

d

\( a=1, b=0, c=1 \)

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