Mathematics for IGCSE & O level - Sketching Curves (Section 5 - No. 24)
What is the main reason for rewriting a quadratic function in completed square form?
To find the x-intercepts easily.
To determine the y-intercept.
To identify the vertex (turning point).
To determine the roots of the equation.
توضیح
The completed square form allows easy identification of the vertex coordinates.