Question

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Answer 1

what is your opinion ?

Answer 2

when in what case a system of equations has infinite many solutions ? do you know it ?

Answer 3

i have no idea my lesson didnt explain how to do this well and i have written notes and everyhting

Answer 4

ok. in case the first one

y=3x+1
-3x+y=1

do you can rewriting these equations with variable terms on one side isolated ?

Answer 5

-3x+y=1
-3x+y=1

yes ? in this way is right

Answer 6

what mean that these equations are the same ,equals - yes ?

Answer 7

i think so

Answer 8

ok. so than you like solve this system indifferent using elimination method or substitution method what will get ?

Answer 9

-3x+y=1 multiply by -1 both sides and will
-3x+y=1

3x-y=-1 yes ? but now than you assume term by term will get

3x +y = -1
-3x -y = 1
------------------
0 0 0

right ?

do you understand it now what mean system with infinity solutions ?

Answer 10

yes thank you very much

Answer 11

yw