Static Parabolas - Putting it all together

Input . In the next input line, enter . In the next input line, enter . How did the two graphs change compared to ?

Erase all inputs except . In the next input line, enter . In the next input line, enter . How did the two graphs change compared to ?

Erase all inputs except . In the next input line, enter . How did the graph change compared to ?

Consider . How would you expect the graph change compared to ? Now enter it and see!