Respuesta :

the correct code is CAHF.

Step-by-step explanation:

1)

1=1

2=3

3= 2m+b

1=m+b

2= m

slope= 2

(C)

2)

b= 7

4= m+7

m= -3

slope = -3

(A)

3)

28= 4m+ b

18= 2m+b

10=2m

m= 5

(H)

4)

b= -4

2-= 2 m-4

2m= 2

m= 1

(F)

the code is : CAHF