A-level Maths

56 A level Mathematics Edexcel Paper 1 2018 Q9 Part c)

About this lesson
This video explains how to find the coordinates of the point furthest north of the origin on a given curve. We demonstrate that at this maximum northern point, the tangent to the curve will be horizontal, making the gradient (dy/dx) equal to zero. Setting dy/dx to zero reveals the relationship y = x for this specific problem. To solve for the exact coordinates, you would substitute y = x into the original equation of the curve. Remember to select the positive solution, as the point is located in the positive quadrant. For more expert math tutorials and resources, visit AxiomTutoring.com and subscribe to @AxiomTutoringCourses for daily math help!
Walkthrough

Follow the reasoning, step by step.

A Private Conversation

Study this with Kristina Shuka, one to one.

These lessons are freely available. For tailored pacing, feedback and problem sets, arrange a complimentary consultation with our faculty.

Discuss a Bespoke Plan