In Part (I), we saw how to work out the coordinates of the turning point on quadratic curve that has solutions – that is the curve crosses the x-axis at one or two points.
But what if the quadratic equation does not have any solutions – meaning the curve is either above or below the x-axis.
In this case, to find the coordinates of the turning point, we can use COMPLETING THE SQUARE method.
EXAMPLES
In Part (I), we saw how to work out the coordinates of the turning point on quadratic curve that has solutions – that is the curve crosses the x-axis at one or two points.
But what if the quadratic equation does not have any solutions – meaning the curve is either above or below the x-axis.
In this case, to find the coordinates of the turning point, we can use COMPLETING THE SQUARE method.
EXAMPLES
Nouri Dib