find the coordinates of the single stationary point of the curve with equation y=8x^2 + 2/x

rewrite the equation in a more helpful way:y=8x2 + 2x-1 differentiate:dy/dx = 16x -2x-2set equal to 0 and solve for x16x -2x-2 = 016x -2/ x2=016x= 2/ x216x3=28x3=1x3=1/8x=1/2note: x cannot be -1/2sub x into original curve equation:y= 8(0.5)2 + 2/0.5y= 2+ 4y=6

PR
Answered by Pavan R. Maths tutor

9401 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

If x:y = 7:4 and x+y = 88 , work out the value of x–y.


v^2=u^2 + 2as u=12 a=-3 s = 18 Find v


Expand and simplify (x+1)(2x+3).


If a rectangle has length (x-4), width (x-5) and area 12 then what is the value of 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:

© 2025 by IXL Learning