A function is a special type of relation for which there is a rule that pairs each input with exactly one output.
 
        
             
        
        
        
9x-7=-7
     +7 +7
___________
9x= 0
_     _
9     9
x=0
        
                    
             
        
        
        
Answer:
sa (surface area) =  
 
Step-by-step explanation:
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Answer:
3 whole multiply by M subtracted from 7
Step-by-step explanation:
 
        
             
        
        
        
The area of the triangle will be 24912 sq. units. Square units and other similar units are used to measure area.
<h3>What is the area?</h3>
The space filled by a flat form or the surface of an item is known as the area.
The number of unit squares that cover the surface of a closed-form is the figure's area. 
For:
(X1, Y1) = (1, 15)
(X2, Y2) = (-2, 1)
d = 14.317821
For:
(X₂, Y₂) = (-2, 1)
(X₃, Y₃) = (4, 5)
d = 7.211103
For applying the pythogorous them we need the right angle triangle obtained by bisect from the mid point.
The value of the base is;
⇒7.2 / 2 
⇒3.6
apply the pythogorous theorem for finding the height;
h² = p² + b²
14.31² = p² + 3.6²
p = 13.84 
The area of the triangle is;

Hence, the area of the triangle will be 24912 sq. units.
To learn more about the area, refer to the link;
brainly.com/question/11952845
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