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Math Problem

Red Dragon
By Red Dragon
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Hey guys i was wondering what a formula (like for a line) would be if every time x went up one y doubled.

Example 

1,1

2,2

3,4

4,8

5,16

6,32 

etc.

it would also be helpful if you explained how you did it so i could know for the future

Thanks in advanced

~ Maybe the cup is just too big ~

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Posted

Hey guys i was wondering what a formula (like for a line) would be if every time x went up one y doubled.

Example 

1,1

2,2

3,4

4,8

5,16

6,32 

etc.

it would also be helpful if you explained how you did it so i could know for the future

Thanks in advanced

 

Nonlinear.

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Posted

you need a= y2-y1/x2-x1 

 

then find b afterwards easy 

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I'm just trying to figure out how to make a function for this...

Help me I'm surrounded by morons.

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@Hasleo

I think that only works for linear functions.

Help me I'm surrounded by morons.

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Un = 2n? doesn't work.

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I'm just trying to figure out how to make a function for this...

-snip-

Just make it so that everytime x goes up y doubles.

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Just make it so that everytime x goes up y doubles.

 

Yeah but how would I write that in an equation?

Help me I'm surrounded by morons.

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Yeah but how would I write that in an equation?

y = 0.5 * 2.0^x I used graphmatica.

 
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I think that only works for linear functions.

 

a= y2-y1/x2-x1 is a basic math tool you use to find "a" in a non linear function afterwards you have to find b as i can see you have a impotent b value, and i´m guessning it is a f(x)=a*x+b or f(x)b*x^a  

 

the guys above me solved it for you :P spoils the fun 

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Yeah but how would I write that in an equation?

Everytime x goes up, you must double y too.

e.g. you make it so x goes up everytime the user presses the + button in your game, you double y.

"We're all in this together, might as well be friends" Tom, Toonami.

 

mini eLiXiVy: my open source 65% mechanical PCB, a build log, PCB anatomy and discussing open source licenses: https://linustechtips.com/topic/1366493-elixivy-a-65-mechanical-keyboard-build-log-pcb-anatomy-and-how-i-open-sourced-this-project/

 

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  • Author

I got this after playing with this graphing calculator. 

 

jJ7qJ.jpg

Thanks that works well

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Everytime x goes up, you must double y too.

e.g. you make it so x goes up everytime the user presses the + button in your game, you double y.

 

That's not what I meant. I meant, exactly how would I write the equation to put into a graphing calculator. Someone else solved it already, though.

Help me I'm surrounded by morons.

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  • Author

y = 0.5 * 2.0^x I used graphmatica.

That was more or less what i was looking for much appreciated 

~ Maybe the cup is just too big ~

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