150K Before WOA 2010

[808Metal]

np: VANIZE - Holy War

 

[xforeverxmetalx]

Okay now I'm going to do a graphing one. Should be fun trying to do that on the forum.

y = 2f(x-4)-3

 

[xforeverxmetalx]

Well... actually I'm skipping the graphing part because that involves another equation, which according to the review sheet, is found in the book. Which I don't have. So I'm just going to describe what happens to graph y=f(x).

 

[Morphinechild78]

La la la la laaaaaa la la la la laaaaaaa

 

[808Metal]

Okay now I'm going to do a graphing one. Should be fun trying to do that on the forum.

y = 2f(2x-4)-3

Well... actually I'm skipping the graphing part because that involves another equation, which according to the review sheet, is found in the book. Which I don't have. So I'm just going to describe what happens to graph y=f(x).

 

[xforeverxmetalx]

y = 2f(x-4)-3

Each point goes...
down 3
right 4
stretched vertically by 2

 

[xforeverxmetalx]

Don't you remember any of this stuff?

 

[xforeverxmetalx]

Now a completing the square one

y = x^2+4x-5

 

[Morphinechild78]

i'm so liking this band "Blotted Science" its instrumental extreme metal

http://www.youtube.com/watch?v=O8NjgZdWfLY

 

[xforeverxmetalx]

y = x^2+4x-5

banish the -5

y = x^2+4x..............-5

factor

(x+2)(x+2)

multiplies back out to x^2+4x+4... so the 4 is extra...

(x+2)^2-5+4

(x+2)^2 -1

Done.

 

[Morphinechild78]

y = x^2+4x-5

banish the -5

y = x^2+4x..............-5

factor

(x+2)(x+2)

multiplies back out to x^2+4x+4... so the 4 is extra...

(x+2)^2-5-4 to take out that 4

(x+2)^2 -9

Done.

why does it look like Math is much harder than when i were at school

 

[808Metal]

La la la la laaaaaa la la la la laaaaaaa

The big red lala song

 

[agresionpower]

time for some fresh air

 

[xforeverxmetalx]

why does it look like Math is much harder than when i were at school

Don't know I did that a few years ago though I think This whole class is basically a review.

 

[808Metal]

Don't you remember any of this stuff?

nope