Respuesta :

Step-by-step explanation:

the general equation :

y = ax +b

2 = 0a+ b => b = 2

4 = -2a + b

4 = -2a +2

2a = 2-4

2a = -2

a = -1

so, y = -x + 2

Y= ab+x
So y= -2+x
Hope it helps as I am in 7th grade I can just tell answer