The area of the triangle with vertices   is
 is
 .
.
Inserting numerical values, the are of the triangle with vertices (0, 0), (6, 2), (4, 8) is

 
        
             
        
        
        
Here's one way:
A=WxL
So in this case, it's 2x5
You would draw the rectangle, label one side 2 in. and the other 5 in. Draw an arrow from each no./side and put x underneath the line so that its 2 —x— 5 (2, line, x, line, 5. With x under line)
        
             
        
        
        
X+17.92+15.33=72.31
                        -17.92
                        -15.33
x= 39.06
The amount you started with was $39.06.
Hope this helps ;}
 
        
                    
             
        
        
        
The slope is m = rise/run
m = ( -3 - 6 ) / ( 5 - ( -2 )) = -9 / ( 5 + 2 ) = - 9/7
Answer: the slope of the line is -9/7.