SOLUTION: solve the following and descrbe the one-demenisional graph 2<2x-5<7 my answer:2+5<2x-5+5<7+5 7<2x<12 7<2x<12 divide it all by 2 to get x alone

Question 202513: solve the following and descrbe the one-demenisional graph
2<2x-5<7
my answer:2+5<2x-5+5<7+5
7<2x<12
7<2x<12 divide it all by 2 to get x alone
7/2 i have no idea how this graph would look
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

You missed it by that much.

Everything you did was correct up to and including the point where you said:

But when you then divided through by 2, you should have left the

in the middle with the following result:

The graph is, as the instructions to the problem state, one-dimensional. That is, you are just graphing on the regular old number line. Make a little circle at

, then make another little circle at

to mark your endpoints. The reason that you are using little circles to mark the end points is because your inequality signs are NOT inclusive of equals. If your relationship signs had been

instead of

then you would have used solid dots.

Once you have the endpoints marked, make a heavy line between the endpoints to show the inclusion of everything in between the endpoints.

John

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