John has a 6cm long rose candle. He lights the candle at 7pm. After two hours it was 3cm long. Find the slope of the line.

Respuesta :

slope = change in height/change in time

(0,6) (2,3)

   = (6-3)/ ((0-2)

   = 3/-2

   =-3/2

The slope is -3/2