Find the gradient of the tangent and the normal to the curve f(x)= 4x^3 - 7x - 10 at the point (2, 8)

y = 4x3 - 7x -10The gradient of the function at any point can be found using its derivative:dy/dx = 12x2 - 7The gradient of the function, m1, at (2,8) is equal to the gradient of the tangent at that point:m1 = 12(2)2 - 7 = 48 - 7 = 41Since the tangent and normal to a given point are perpendicular, their respective gradients form the equation below:m1m2 = -1, where m2 is the gradient of the normal=> m2 = -1/m1 = -1/41

MP
Answered by Miss P. Maths tutor

5425 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the area under the curve of y=x^2 between the values of x as 1 and 3


The graph with equation y= x^3 - 6x^2 + 11x - 6 intersects the x axis at 1, find the other 2 points at which the graph intersects the x axis


A curve has equation y = 3x^3 - 7x + 10. Point A(-1, 14) lies on this curve. Find the equation of the tangent to the curve at the point A.


Make a the subject of 3(a+4) = ac+5f


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning