slope m = - 2 → B
calculate m using the ' gradient formula '
m = (y₂ - y₁)/(x₂ - x₁)
choosing 2 'clear ' coordinates from the graph of the line
(x₁, y₁) = (0, 7) and (x₂, y₂) = (7, - 5[tex]\frac{(- 5 - 7)}{(6 - 0)}[/tex]) = [tex]\frac{- 12}{6}[/tex] = - 2
m =
