Edexcel Mathematics June 2023 · Paper 2 · Question 7 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

June 2023 · Paper 2 · Question 7 · 7 marks

7. In this question you must show all stages of your working. Solutions relying on calculator technology are not acceptable. A curve has equation x3 + 2xy + 3y2 = 47 (a) Find d dy x in terms of x and y (4) The point P (–2, 5) lies on the curve. (b) Find the equation of the normal to the curve at P, giving your answer in the form ax + by + c = 0 , where a , b and c are integers to be found. (3) 17

Lesson: Introduction to Differentiation and First Principles (Polynomials)