Respuesta :

Answer:

- 0.6

Step-by-step explanation:

Coordinate points: (2,9) (12,3)

Equation: y = mx+b

Slope formula:     y2 - y1

                         -----------------

                            x2 - x1

----------------------------------------------------------------------------------------------------------------

Slope:

9 - 3              6

-------   =.      -----   =  -0.6

2 - 12           -10

Answer is: -0.6

Hope that helps!