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Linear Inequalities Videos 13 videos
When graphing inequalities, you graph the line, shade the corresponding side, and plug in the point. The end!
No, these are not inequalities that have been convicted and imprisoned inside a maximum security prison. Although some of them do have quite a rap...
Algebra I Drill 3 Problem 2. How did Sandy change the inequality?
CAHSEE Math 3.2 Algebra I 192 Views
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Description:
Algebra I Drill 3 Problem 2. How did Sandy change the inequality?
Transcript
- 00:03
And here's another shmoop du jour.
- 00:05
In order to solve the inequality negative three-halves times 3x minus 5 is greater than 6...
- 00:11
…the first thing Sandy did was change the inequality to 3x - 5 is less than -4.
- 00:18
She accomplished this by doing… what?
- 00:23
And here are the potential answers…
Full Transcript
- 00:30
This one is pretty straightforward – just look at the very first term –
- 00:34
we’re gonna want to multiply that negative 3 halves thing by 3x…
- 00:39
Well, in the rewrite she clearly got rid of that ugly prefix.
- 00:43
How? She just multiplied by the reciprocal of negative 3 halves or negative 2 thirds
- 00:50
and just condensed the left side to be 3x-5….
- 00:54
The right side then became 6 times negative 2/3 or … negative 4 cutely circled here.
- 00:58
Answer: D. As in, "Done."
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