If the distance from D to D' is 10 and the distance from A to D is 5, what is the scale factor? Answers:

1) 3
2) 2
3) 1/2
4) 1/3

1/3

Step-by-step explanation:

hope it helps

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

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)