Respuesta :

Answer:

m=-3/4

Step-by-step explanation:

y2-y1/x2-x1

-3-(-3/4)/4-1

-3+3/4/3    simplify -3+3/4 to -9/4

-9/4 /3       simplify 9/4 /3 to 9/4*3

-9/4*3

-9/12

-3/4