Answer:
slope = - [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Parallel lines have equal slopes
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (9, 6) and (x₂, y₂ ) = (3, 10)
m = [tex]\frac{10-6}{3-9}[/tex] = [tex]\frac{4}{-6}[/tex] = - [tex]\frac{2}{3}[/tex] ← slope of parallel line
