Which graph shows the following inequalities? - 2 ≤ x + 5 < 7
Hello, I hope you're enjoying your stay at OpenStudy. Your fist step would be solving the inequality: - 2 ≤ x + 5 < 7 You can break it down into two inequalities -2 ≤ x + 5 and x + 5 < 7 The next step is solving each inequality. Can you do that?
no, i dont understand how >__<
Are you familiar with how to solve equations? If so, go ahead and solve this: x + 2 = 3 See if you can do it.
well x = 1
Okay, now can you solve x + 2 > 3
x + 2 is greater than 3??
Yes. CAn you solve it?
No! i dont understand the question >__<
It's the same as solving an equation. They are EXACTLY the same. x + 2 = 3 x - 2 + 2 = 3 - 2 x = 1 Now the inequality version x + 2 > 3 x - 2 + 2 > 3 - 2 x > 1
so a > or < would always be the same as =?
Yup! You work them exactly the same!
nope okay i dont understand. - 2 ≤ x + 5 < 7 -2 = x + 5 = 7
- 2 ≤ x + 5 < 7 You want to split it into two separate ones. -2 ≤ x + 5 x + 5 < 7 You basically want to take the middle terms (x + 5) and put them with the far left term and the far right term. Then solve them individually, and you'l lget the graph.
i dont understand ;___;
I'm going to use brackets ot make it easy to understand (1) < [x + 2] < (3) (1) < [x + 2] <-- you would solve this and you'll get a point on the graph [x + 2] < (3) <-- You would solve this, too, and get another point on the graph
1 = 3 and 3 = 3??
You're not getting this are you. -_-
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