Which number line models represents 1+ (-3)

D graph would represent  1+ (-3).

Step-by-step explanation:

Given : 1 + (-3 )

To find  : Which number line models represents 1+ (-3).

Solution : We have given that 1 + (-3 ).

1 + (-3 ) = 1 -3  

⇒ -2.

We have start from 1 and will move left 3 unit ( for - sign) and finally get -2.

Therefore, D graph would represent  1+ (-3).

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)