What is the co-ordinates of the minimum point of the quadratic equation x^2+6x-16?

Well this can be rewritten as : (x+8)(x-2), so roots are x=-8, and x=2. So therefore the x co-ordinate of the minimum point is half way between the 2 roots by symmetry. So the x co-ordinate is x=-3. Substituting this into the original equation gives -25. Therefore the minimum point is (-3,-25).

LO
Answered by Lance O. Maths tutor

2874 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Show that (4+√12)(5-√3)= 14+6√3


How do I find the equation of a line that's perpendicular to another one?


y=2x+5 and y-x=8. Find x and y.


Solve the simultaneous equation: 3x+y=-2, -7x+5y=34.


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