Answer:
slope = - [tex]\frac{1}{12}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (1, 4) and (x₂, y₂ ) = (13, 3)
m = [tex]\frac{3-4}{13-1}[/tex] = [tex]\frac{-1}{12}[/tex] = - [tex]\frac{1}{12}[/tex]