Question 813868
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Hi,
0.4y=2x-3.2  0r  4y = 20x - 32  0r  y = 5x - 8
Using the point-slope form:  (y-(-8)) = 5x   0r  (y+8) = 5x
Using the standard slope-intercept form for an equation of a line y = mx + b  
where m is the slope and b the y-intercept. 
 y = 5x -8
standard form of a line is in the form Ax + By = C
 5x -y = 8