|
|
|
|
|
|
|
|
|
 Posted: Sun Sep 13, 2009 6:09 pm
=3...almost done! I just have to find the zeros for these last few problems...
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Sun Sep 13, 2009 6:11 pm
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Sun Sep 13, 2009 6:16 pm
Okays...^^" Just one problem Kaddy needs help with.
We haves to find the zeros of functions. And it's pretty easy, I just don't quite how to do this one:
f(x)=12
How would Kaddy find the zero for that one? o.o
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Sun Sep 13, 2009 6:22 pm
That's a horizontal line... it doesn't have any zeros.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Sun Sep 13, 2009 6:27 pm
|
|
|
|
|
|
|
|
|
|
Posted: Sun Sep 13, 2009 6:29 pm
Yep. It's a trick question. ^^
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Tue Sep 15, 2009 5:55 pm
|
|
|
|
|
|
|
|
|
|
Posted: Mon Sep 21, 2009 5:55 pm
Open! Homework times! ^^" We're learning how to determine whether a pair of equations are parallel, coinciding, perpendicular, or none of the above. ^^" Kaddy understands it a little bit, but it's still confuzzling to her...How do you determine each? o.o" The coinciding ones are kind of easy, it's the other two I'm confuzzled with...
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Mon Sep 21, 2009 5:58 pm
Parallel is when the slopes are the same.
Perpendicular's the opposite, when the slopes are opposite reciprocals. As in you switch the top and bottom of the fraction and make it negative.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Mon Sep 21, 2009 6:12 pm
Hm...okay okay, I think I get it. So...with this problem...
y=5x-18
2x+10y+10=0
The first one's done already so then...
2x+10y+10=0
2x+10y=-10
10y=-10-2x
10y/10=-10/10 -2x/10
y=1-2/10x
Which is the same as y=1-1/5x when simplified...so...
y=5x-18
y=1-1/5x
...perpendicular?
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Mon Sep 21, 2009 6:16 pm
|
|
|
|
|
|
|
|
|
|
Posted: Mon Sep 21, 2009 6:24 pm
Yays! ^.^ I think I get it nows a bit more ^^ Thankies, Brother >w<
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Posted: Mon Sep 21, 2009 6:31 pm
|
|
|
|
|
|
|
|
|
|
Posted: Tue Sep 22, 2009 4:36 pm
*walks in* goodday everone
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Reply
