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Let f(x)={-x^2,forx<0x^2+8,forxgeq0t h e...

Let `f(x)={-x^2,forx<0x^2+8,forxgeq0t h e nx-in t e r c e p toft h e` line, that is, the tangent to the graph of `f(x)` , is zero (b) `-1` (c) `-2` (d) `-4`

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