Answer:
Part 1) solution {(-5,8),(3,0)} ----> 
 and 
Part 2) No solutions ----> 
 and 
Part 3) solution [(-2,5),(3,-5)] ---> 
 and 
Part 4) No solutions ---> 
 and 
Part 5) solution [(2,3),(8,9)] --->
 and 
 
Part 6) solution [(-2,3),(7,-6)] --->
 and 
 
Step-by-step explanation:
Part 1) we have
 ----> equation A
 ----> equation B
Solve by graphing     
Remember that the solution of the system of equations is the intersection point both graphs
The solution are the points (-5,8) and (3,0)   
see the attached figure N 1
Part 2) we have
 ----> equation A
 ----> equation B
Solve by graphing     
Remember that the solution of the system of equations is the intersection point both graphs
The system has no solutions, because there is no point of intersection between the two graphs   
see the attached figure N 2
Part 3) we have
 ----> equation A
 ----> equation B
Solve by graphing     
Remember that the solution of the system of equations is the intersection point both graphs
The solution are the points (-2,5) and (3,-5)   
see the attached figure N 3
Part 4) we have
 ----> equation A
 ----> equation B
Solve by graphing     
Remember that the solution of the system of equations is the intersection point both graphs
The system has no solutions, because there is no point of intersection between the two graphs    
see the attached figure N 4
Part 5) we have
 ----> equation A
 ----> equation B
Solve by graphing     
Remember that the solution of the system of equations is the intersection point both graphs
The solution are the points (2,3) and (8,9)   
see the attached figure N 5
Part 6) we have
 ----> equation A
 ----> equation B
Solve by graphing     
Remember that the solution of the system of equations is the intersection point both graphs
The solution are the points (-2,3) and (7,-6)   
see the attached figure N 6