Determine the values of ' \( x \) ' for which the function \( f(x)=...

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Determine the values of ' \( x \) ' for which the function \( f(x)=x^{2}+2 x-3 \) is an increasing.

Also, find the co-ordinates of the point on the curve \( y=x^{2}+2 x-3 \), where the normal is parallel to the line \( x-4 y+7=0 \).
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