Respuesta :

Answer:

y = x

Step-by-step explanation:

computing the slope

m = ( 3 + 1 ) / ( 3 + 1 )

m = 1

choose one point ( 3 , 3 )

y - 3 = 1 ( x - 3 )

y - 3 = x - 3

y = x

m = 1, b = 0