A function f is defined by f(x) = x^3 - 3x^2 + 1. i) Write down f'(x). ii) Hence find the co-ordinates of the stationary points of the curve y=f(x).

i) Using the power rule, f'(x) = 3x2 - 6x ii) To find stationary points, set f'(x) to 0: 3x2 - 6x = 0. 3x(x - 2) = 0. x = 0  or  x = 2 So the co-ordinates are (0,f(0)) = (0, 1), and (2,f(2)) = (2,-3).

SS
Answered by Sam S. Maths tutor

5490 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Where do the graphs of y=3x-2 and y=x^2+4x-8 meet?


The shortest side of a triangle is 4.3m long. Two of the angles are 45.1 and 51.2 degrees respectively. Find the length of the longest side.


Calculate the gradient of the function y=x^2+6x when y=-9


Find the integral I of e^(2x)*cos*(x), with respect to x


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:

© 2026 by IXL Learning