The best example of a plane would be A) the surface of a flat table. A plane could also be represented by anything that is flat in nature. 
Hope this helps! :)
        
                    
             
        
        
        
The graph is attached. :D
Hope I helped you! The graph calculator is desmos. You can use it for these types of questions.
Stay safe and God bless!
- eli <3
 
        
             
        
        
        
Answer:
<h2>7.5$</h2>
Step-by-step explanation:

 
        
             
        
        
        
Answer:
the missing is 4.98
Step-by-step explanation: