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If y=x^2+2x-3,y-x graph is...

If `y=x^2+2x-3`,`y-x` graph is

A

B

C

D

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Verified by Experts

The correct Answer is:
C
`y=x^2+2x-3`,
If we compare with `y=ax^2+bx+c`
The coefficient of `x^2` is positive hence parabola opens up
At `x=0`,`y=-3`
At `y=0`,`x=(-2+-sqrt(4+12))/(2xx1)`
`=(-2+-4)/(2)=-1+-2=-3`,1.
Hence, option ( c) is correct.
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