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 SQUAREmethod.EXAMPLES## Nouri Dib