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

5793 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Show that the line with equation ax + by + c = 0 has gradient -a/b and cuts the y axis at -c/b?


Given y = ln((2x+3)/(7x^3 +1)). Find dy/dx


Using the limit definition of the derivative, find the derivative of f(x)=sin(3x) at x=2π


The arithmetic series is given by (k+1)+(2k+3)+(3k+5)+...+303. a)Find the number of term in the series in terms of k. b) Show that the sum of the series is given by (152k+46208)/(k+2). c)Given that S=2568, find k.


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