Answer:
Following are the solution to the given question:
Explanation:
Please find the complete question in the attached file.
For question 5: 
For point a: 

For point b:

For point c: 
 
 
 For question 6:
For point a: 
 (the negative sign is used to change the direction of the parabola)
 (the negative sign is used to change the direction of the parabola) 
For point b:

For point c: 
