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Real Numbers and Quantities Videos 14 videos
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Intercepts 2411 Views
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Description:
We have some axes to grind with you. Namely, x and y .
Transcript
- 00:01
Intercepts, a la Shmoop. You may have noticed that algebra "loves"
- 00:09
lower case letters . . .
- 00:10
. . . especially these guys.
- 00:12
We're not sure why anyone would be so crazy about a couple...
- 00:15
...with such blatant identity issues. . .
Full Transcript
- 00:17
. . . but they're clearly the stars of the show.
- 00:20
Nowhere is their popularity more evident than here at the x and y axes...
- 00:24
. . . where points are vying for a favorable position.
- 00:26
In fact, these guys are so popular . . .
- 00:28
. . . they've got their own paper.
- 00:31
Something they don't want anyone to forget. But, just for a second, let's not call them
- 00:36
x or y.
- 00:37
For the purpose of this exercise, let's say x is the goal line for The Chicago Bears . . .
- 00:40
. . . and y, hmmm, let's make y... The Green Bay Packers.
- 00:46
If you think about numbers. . .
- 00:47
. . .the way those teams think about footballs. . .
- 00:50
. . .intercepts become pretty simple. The x intercept is where a line crosses the
- 00:55
x axis. . .
- 00:56
. . .and the y intercept is wherever the line crosses the y axis.
- 01:01
Just like a pick six in football. . .
- 01:02
. . .where only the team catching the interception scores. . .
- 01:05
. . .the x intercept for any line is wherever y=0. . .
- 01:09
. . .and the y intercept for any line is wherever x=0.
- 01:14
Okay, guys...
- 01:17
. . . you can
- 01:57
go back to being x and y again. But, do us a favor. . .
- 02:03
. . .try not to give us such a hard time in the future.
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