where a, b, and c are numerical constants and c is not equal to zero. Note that if c were zero, the function would be linear. An advantage of this notation is that it can easily be generalized by ...

Now try the example questions below. Since -1 < 0, then it is a maximum turning point. \({b^2} - 4ac\) where \(a = - 1,\,b = 2\,and\,c = - 3\) \(= {2^2} - (4 \times ...

roots (ie where the parabola cuts the x-axis) the nature and coordinates of the turning point y-intercept (ie where the parabola cuts the y-axis) Look at the National 5 completing the square section ...