Hi,

how can you tell if this pair of equations are parallel, perpendicular, or neither?

put them both in standard slope-intercept form for an equation of a line 

y = mx + b  where m is the slope and b the y-intercept. 

   m = -5/2

-5x+2y=20  0r    m = 5/2

NEITHER parallel(slopes are not the same) 0r perpendicular (slopes are not negative reciprocals)



 

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