Answer
$y=1/3*x+4$
Work Step by Step
Perpendicular to $y=-3x+7$ and passes through (3,5)
$-3*m = -1$
$-3*m/-3 = -1/-3$
$m= 1/3$
$y= mx+b$
$y=1/3*x+b$
$5 = 1/3*3 + b$
$5 = 1 +b$
$5-1 = 1+b-1$
$4 = b$
$y=1/3*x+4$
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