Mark M. answered 07/30/19
Retired college math professor. Extensive tutoring experience.
The slope of y = 13x + 13 is 13, the coefficient of x
Slope of any line perpendicular to the given line is -1/13
Equation of line containing the point (-2,-6) and with slope -1/13:
y - (-6) = (-1/13)[x - (-5)]
Mark M.
07/30/19
Stephane-Bakardi F.
sorry I meant y= 1/3x+1307/30/19