Respuesta :

Answer: y=39

Step-by-step explanation:

Y(2)-Y(1)/X(2)-X(1)

7-1/5-2=6/3=2

Y-Y(1) = m (X - X(1))

Y-1 = 2 (X-1)

Y-1 = 2X -2

Y = 2X -1

Y= 2(20) -1

Y=39