Answer:
y= -4x+4
Step-by-step explanation:
y=mx+b
where x=-1, y=8, and m=-4
8=(-4)(-1)+b
8=4+b
4=b
Thus, y= -4x+4
 
        
             
        
        
        
The area of the square is 4
and the area of the triangle is 2
4+2=6
the area is 6
        
             
        
        
        
The exact calculations:
Principal, P=3000
interest rate = 33% per year
Period, t=10 years
Future value



Interest 
= future value - principal
= 81337.92-3000
= 
78337.92  (to the nearest cent)
 
        
        
        
The answer is that y is equal to -3 and x is equal to 7 
2x-y=17
-2(x-y)=10 )
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2x-y=17
-2x+2y=-20
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y=-3
x-y=10 
x-(-3)=10
x+3=10
 -3   -3
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x=7
        
             
        
        
        
Answer:
12326391
Step-by-step explanation: