Respuesta :
slope = (y2 - y1) / (x2 - x1)
(10,2)....x1 = 10 and y1 = 2
(19,4)...x2 = 19 and y2 = 4
now we sub
slope = (4 - 2) / (19 - 10) = 2/9 <==
(10,2)....x1 = 10 and y1 = 2
(19,4)...x2 = 19 and y2 = 4
now we sub
slope = (4 - 2) / (19 - 10) = 2/9 <==