Respuesta :

Answer:

14/3

Step-by-step explanation:

linear equation slope passing (1,-2), (4,8)= 8-(-2) / 4-1 = 10/3

g=10/3 x +b, substitute (1,-2) to solve b

-2=10/3 (1) +b, b=-16/3

thus, g=10/3 x - 16/3

when x=3, g=14/3