Find the stationary point of 3x^2+7x

dy/dx=6x+7

6x+7=0

x=-7/6

Sub back into original equation; y=98/6

HS
Answered by Harrie S. Further Mathematics tutor

2577 Views

See similar Further Mathematics GCSE tutors

Related Further Mathematics GCSE answers

All answers ▸

The equation of a curve is y = x^2 - 5x. Work out dy/dx


A curve has equation y = ax^2 + 3x, when x= -1, the gradient of the curve is -5. Work out the value of a.


The function f is given by f(x) = SQRT(2x − 5). Work out x when f(x) = 1.2


f'(x) = 3x^2 - 5cos(3x) + 90. Find f(x) and f''(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