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08-10-2006, 04:24 PM
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· #1 | | NamePros Regular Join Date: Jul 2005
Posts: 451
NP$: 118.00 ( Donate)
| Algebra: Transformation help
Hello,
I cannot get ahold of anyone in my class, and maybe one of you can help 
Theres the table we base f off of.
The problem:
y=2f(x)
x | y
--------
-2 |
-1 |
0 |
1 |
2 |
3 |
Then I have to graph it. But thats easy. I have all the other ones figured out, but I missed this parts instruction.
____________________________
Summarize in a sentence. EQUATION EFFECT
1. y=f(x+12) ?
I just need to know how I should write the effect? in words, and im good for the rest.
Thanks!
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08-10-2006, 05:50 PM
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· #2 | | NamePros Regular | Just plug the numbers into the equation.
For x=-2, the equation is y=2(1)=2 (since f(-2)=1).
For x=-1, the equation is y=2(-1)=-2 (since f(-1)=-1).
and so on... | |
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08-10-2006, 05:53 PM
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· #3 | | NamePros Regular Join Date: Jul 2005
Posts: 451
NP$: 118.00 ( Donate)
| Yeah I figured that out after getting my mind off it for a bit. Thanks as well
Just need an explanation of what I would put down for the "effect" of that equation. I'm not sure what they want me to put there.
Stevo | |
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08-10-2006, 05:58 PM
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· #4 | | Senior Member Name: Teddy Location: Bay Area Join Date: May 2005
Posts: 1,501
NP$: 749.16 ( Donate)
| Basically the equation/graph will be shifted to the left by 12 units. | |
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08-10-2006, 06:13 PM
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· #5 | | NamePros Regular Join Date: Jul 2005
Posts: 451
NP$: 118.00 ( Donate)
| Are you sure its the left? I thought positive was on the right?
Thanks!
Stevo | |
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08-10-2006, 07:00 PM
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· #6 | | Senior Member Name: Teddy Location: Bay Area Join Date: May 2005
Posts: 1,501
NP$: 749.16 ( Donate)
|
Yes, if the constant is inside the parenthesis.
Also, you can graph the equation here: http://www.coolmath.com/graphit/index.html
Just input (x+12) and x | |
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08-10-2006, 07:23 PM
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· #7 | | NamePros Regular Join Date: Jul 2005
Posts: 451
NP$: 118.00 ( Donate)
| Thank you
Stevo | |
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08-11-2006, 04:08 PM
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· #8 | | NamePros Regular | For some reason, I didn't see the last part of the question. 
The Effect: There would be a horizontal shift of 12 units to the left. | |
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