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Clavis TMUA Set A Paper 1 · Q9

Paper 1Algebra

The curve y=x2+kx+10y=x^2+kx+10 lies entirely above the line y=2x+1y=2x+1.

Find the complete set of possible values of kk.

A−8<k<4-8<k<4
B−4<k<8-4<k<8
Ck<−4k<-4 or k>8k>8
D−4≤k≤8-4\leq k\leq8
E−210<k<210-2\sqrt{10}<k<2\sqrt{10}
Fall real values of kk

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