Determine if a piecewise function is continuous or discontinuous

The video tutorial explains how to graph a quadratic function and a linear function, focusing on understanding the effects of restrictions on these graphs. It highlights the importance of recognizing where functions are defined and how to handle piecewise functions to ensure continuity. The tutorial emphasizes that piecewise functions can be continuous if properly defined.

What effect does the minus one have on the graph of the quadratic function?

Explain the significance of the point -1 in relation to the function discussed.

Describe the characteristics of the quadratic function mentioned in the text.

What does it mean for a function to be defined only for certain X values?

How does the piecewise function affect the continuity of the overall function?