Respuesta :

akabane009

Answer:

For 10,11 and 12 upload the full question.

Step-by-step explanation:

For 9 no. I think we need to find slope

so

(3,200) and (1,300) i take these points.

slope (m) = (y2-y1)/(x2-x1)

= (300-200)/(1-3)

= 100/-2

= -50

Rate of change is -50.