Question

3x – y = 2
6x – 2y = 4

(1, 1)

(–1, –5)

No Solutions

Infinitely Many Solutions

Answer 1

i think its the third one

Answer 2

are you sure thats the questions ??

Answer 3

Let the first equation be (1), and without too much imagination, let the second be (2). Make (2)* by dividing (2) by -2. Add (1) and (2)* to get 0=0. This indicates the system is dependent, and there are infinitely many solutions.

If we subtract, and get something like 0=k, where k is a nonzero real number, the system is inconsistent, and we have no solution (not true in this case).

Answer 4

Did that help?

Answer 5

im sure

Answer 6

yeah!

Answer 7

can't find the answer.. both get 0

Answer 8

When you work it down, and get 0=0, that is the indicator that the system is dependent, and there are infinitely many solutions.

Answer 9

by elemination method ??

Answer 10

Yeah.

Answer 11

so is it the third one ?

Answer 12

no , the 1st one :) . i'd check the answer