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*P*(–1, 4) is a point on a circle, centre

*O*

Work out the equation of the tangent to the circle at

Give your answer in the form

*P*.Give your answer in the form

*y*=*mx*+*c***Question**

27)

*P*(–1, 4) is a point on a circle, centre*O*Work out the equation of the tangent to the circle at

Give your answer in the form

*P*.Give your answer in the form

*y*=*mx*+*c***[4 marks]**