How to determine the domain and range of a quadratic using its vertex

The video tutorial explains how to determine if a quadratic function has a maximum or minimum value based on the coefficient 'a'. It covers finding the vertex of the parabola using the formula -b/2a and calculating the maximum value by substituting the x-value into the function. The tutorial also discusses the domain and range of the function, emphasizing that the domain is all real numbers while the range is limited by the maximum value.

How do you find the x-coordinate of the vertex of a quadratic function?

What is the domain of the quadratic function discussed in the text?

What is the range of the quadratic function and how is it determined?