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3x +2y =4----multiply by 2 -- 6x +4y = 8 -6x -4y = -8 ---------------- 6x -4y =-8 If you multiply the first equation by 2, you notice that if you add the two equations, the result will be 0 + 0 = 0 There is not one solution. That option can be eliminated. Let's look at the graphs.
ok
Note that the two lines are the same. They coincide at every point with infinitely many solutions because there are infinitely many points on a line.
So, what do you think the answer will be?
A i believe
Correct.
On #2, start at the origin. That is where the x and y axes meet. Go one unit to the right to get underneath the point. That will be an x of 1. Then move upward from that 1 two units to get to the point.
What do you think the coordinates of that point will be? We already know that x = 1 but we need the y. (1, ?)
1,2?
(1,2) B Correct.
ty
You are welcome.
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