alexcampbeel
New member
- Joined
- Mar 22, 2015
- Messages
- 1
Hi there, not sure if I'm posting in the right section, very new to this.
I have a question in my revision sheets which I am stumped by:
'A parabola has equation y=ax2+bx+c, where a is positive. Show the that the minimum y value is given by the expression = -∆/4a, where ∆=b2-4ac.'
I have tried and tried but I don't know where to go with this, any help would be greatly appreciated.
I have a question in my revision sheets which I am stumped by:
'A parabola has equation y=ax2+bx+c, where a is positive. Show the that the minimum y value is given by the expression = -∆/4a, where ∆=b2-4ac.'
I have tried and tried but I don't know where to go with this, any help would be greatly appreciated.