# Algebra: Transformation help

Discussion in 'Random Discussion' started by cheese, Aug 10, 2006.

Joined:
Jun 22, 2003
Messages:
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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!

2. ### angelize56Always remembered in our hearts

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Yep Its changing next year, Texas state law makes us start 4 mondays into august.

Stevo

4. ### angelize56Always remembered in our hearts

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This is the first year our kids go back AFTER Labor Day! It should be that way everywhere! Good luck getting your problem answered...smart people here!

5. ### BanditFlyer

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Oct 25, 2005
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So you just need to fill in the table for the y values?

Looks pretty simple to me. Looks like y will be equal to double whatever the function of x produces, since y=2( f(x) ).

6. ### HenryVI

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May 27, 2005
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I'm not sure what you want here cheese....

y=2f(x) <-- f(x) is the numbers in your X column. F(x) just means put whatever X is into that spot.

Say you have this:
Code:
`f(x)=sin(x)^2 + g(f(x))`
and you have to solve for x = 30, then you just put 30 into the x spot, the f(x) at the beginning just shows that it is a function (it isn't relevant).

OOPS I didnt see the question :

1. y=f(x+12) ?

That is a straight line. Whatever X is just add 12 to it. Then graph y=x+12; it will be a horizontal line on the y-axis.

And to angel and cheese, I started today..... but next year (when I'll be a senior ) they are changing us to start after labor day. As you can see I'm also in Tejas.

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Hey,

I think I figured out the 1st one. It has to related back to the table of F I showed, but I think I get it.

For the 2nd part though Henry, I dont need to plot it, I just need a word summary of the "effect" of that equation.

Im not sure what I put there, as I missed that part of class

Just need an explanation on the 2nd one and im good. Thanks guys

Stevo

8. ### HenryVI

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May 27, 2005
Messages:
3,065
Wait a sec................

it would be a horizontal shift right (negative) 12.