Rearranging a function. Seems quite basic.

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The discussion revolves around a math homework question involving rearranging a function. The user initially struggles with obtaining the correct constant term, mistakenly calculating it as -5 instead of the expected +5. Clarification is provided that the correct approach involves adding 5/4 to the original y value, which resolves the confusion. The user expresses gratitude for the assistance and feels more confident in understanding the concept. This exchange highlights the importance of correctly interpreting function transformations in mathematics.
Matty R
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Hello. :smile:

I'm having a bit of trouble with a question I've been given as part of a Maths course, and was wondering if someone could help.

Homework Statement



http://img21.imageshack.us/img21/4920/question6c.jpg


Homework Equations


http://img222.imageshack.us/img222/7092/equations6.jpg


The Attempt at a Solution


http://img22.imageshack.us/img22/1508/attempt6.jpg

As you can see, the function is meant to have +5 on the end, but I get -5. I don't know where I've gone wrong. I did ask the teacher if the 5/4 is just added to the y, and she nodded.

I would appreciate any and all help with this. I know its basic, but its got me. :biggrin:
 
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Hello Matty R! :smile:
Matty R said:
As you can see, the function is meant to have +5 on the end, but I get -5. I don't know where I've gone wrong. I did ask the teacher if the 5/4 is just added to the y, and she nodded.

She meant that you add 5/4 to the original y …

in other words, y is now 5/4 more …

so if y1 is the first jump, and y2 the second jump, then y2 = y1 + 5/4 :wink:
 
http://img21.imageshack.us/img21/3846/donef.jpg

Thank you so much. I'd never have thought of doing that. :redface:

I feel a lot better now. :smile:
 
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