quadratic equation Watch
When you have the quadratic ax^2 + bx + c = 0
The turning point is at x = -b/(2a). In this case b=3, a=1 so the turning point is = -3/2
I'm so sorry, you've lost me there. This is my first exposure to these graphs, I'm basically trying to pass igcse maths in 2 and a half months by self study. having zero background in the subject. So unfortunately its baby steps all the way.