Mathematics for IGCSE & O level - Sketching Curves (Section 3 - No. 48)

A quadratic function is given as \(y = x^2 - 6x + 10\). Which of the following methods can be used to find the coordinates of its turning point?

Completing the square

Finding the x-intercepts

Finding the y-intercept

Differentiating the function

Completing the square is the standard method for finding the turning point of a quadratic function.