The slope of the line perpendicular to 13x – 7y + 1 = 0 is ……………….
The slope of the line perpendicular to 13x – 7y + 1 = 0 is ……………….
A) \(\cfrac{-7}{13}\)
B) \(\cfrac{7}{3}\)
C) \(-\cfrac{7}{3}\)
D) \(\cfrac{13}{7}\)
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