Respuesta :

Step-by-step explanation:

the formula is y2-y1/x2-x1

points (p,5 is x1 whiles 3 is y1)

point (Q,8 is x2 whiles 12 is y2

so 12-3/8-5

so 12-3 is 9 and 8-5 is 3

so the answer is 9/3