Respuesta :

ghanami

Hello:
the equation is : y = ax+b
the slope is a : a×(-4) = -1......( perpendicular to a line with a slope of 4)

a= 1/4

: y = (1/4)x + b



the line that passes through (8, -1) : -1 = (1/4)(8)+b
b =-3
 the equation is :  y  = (1/4)x-3

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