Answer:
A
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a) Yes. 
Step-by-step explanation:
A function does not have any repeating values for a given x-value. According to the values of the table, there aren't multiple y-values for a given x-value. Therefore, the table represents a function. 
 
        
                    
             
        
        
        
Answer:
1221 - 321 = 900
Step-by-step explanation:
 
        
             
        
        
        
Answer:
B) no, because the corresponding angles are not congruent
Step-by-step explanation:
Similar triangles must have proportional sides, as well as congruent corresponding angles. In this instance, we can see that the angles are not <em>congruent</em>, and so there is no need to solve for proportion.
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