Respuesta :

apologiabiology
slope=rise/run

easy
if we imagine a graph in our head
we see that the graph goes down, negative slope
it goes down 4 units and to right 6, so 4/6=2/3 but it is negative so -2/3

other way is
(y2-y1)/(x2-x1)=(0-4)/(6-0)=-4/6=-2/3

3rd one