From the equation \(y = - {(x + 4)^2} - 5\), write down the co-ordinates and nature of the turning point and the equation of the axis of symmetry. Show answer Hide answer ...

Revise how to identify the y-intercept, turning point and axis of symmetry of a quadratic function. BBC Bitesize Scotland revision for SQA National 5 Maths.

In other words, this parabola intersects the x-axis when x = –1 and x = 5. The same method also works for equations that are not readily factorable. That’s when students turn to the quadratic ...