Question

@jim_thompson5910 Complete the logical argument by giving a reason for each step ?

AB = BC
AC = AB + BC
AC = AB + AB
AC = 2(AB)

Given
a.________________
b.__________________
c.__________________

Answer 1

tell me what you have so far

Answer 2

i have no idea how to do this

Answer 3

AC = AB + BC is true for what reason?

Answer 4

cuz they r even ?

Answer 5

and if u add it, it creates the whole line

Answer 6

look through your notes

Answer 7

it has the word "postulate" in it

Answer 8

i dont have my notes with me .-.

Answer 9

they're at school or something?

Answer 10

segment addition ?

Answer 11

segment addition postulate ?

Answer 12

and yes

Answer 13

good, segment addition postulate

Answer 14

thats what i put for a. ?

Answer 15

yep

Answer 16

b. ?

Answer 17

what changes from AC = AB + BC to AC = AB + AB

Answer 18

um... idk

Answer 19

look closely

Answer 20

if you change the c to a b ?

Answer 21

so BC turns into AB

Answer 22

what rule did we just use? and why is this valid?

Answer 23

because its the same thing.. segment addition ?

Answer 24

nope not segment addition

Answer 25

transitive ?

Answer 26

@jim_thompson5910

Answer 27

hint: we replaced BC with AB

Answer 28

i forgot the postulate names

Answer 29

so i have no idea .-.

Answer 30

hint: this person replaces your teacher when your teacher gets sick

Answer 31

substitution postulate

Answer 32

yes, or property

Answer 33

and that works because AB = BC is given at the top

Answer 34

and last is multiplication ?