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1 Unit 1: Pure Mathematics A

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Question 170

A curve has equation y=x2+(k−1)x+9y = x^2 + (k - 1)x + 9y=x2+(k−1)x+9 where k k\,k is a constant.

The line with equation y=3xy = 3xy=3x is a tangent to the curve.

Find the possible values of kkk.

[5]
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1 Unit 1: Pure Mathematics A Questions

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