Thread: If 30 units = 500 and 300 units = 1500 what would say 80 units = ?

I think I need a graphing calculator of some kind.

I want a calculator or a formla for a spread sheet or just a quick way to work out a math problem.

If 30 units = 500 and 300 units = 1500

From this a line on a graph could be drawn that would then tell me the value of any number of units.

what would say 80 units = ?

Maybe I could have explained this better. I hope it makes sense.

Any ideas anyone?

Thanks

MIke

Firstly, we need to find the conversion factor (something like between Celcius <=> Fahrenheit relations):



increase of is equal to increase of value and it's obvious, that both scales start in different places, so we need to find the constant number, which will be added during conversion:


we can treat it as a function:
and then:

Of course I assumed, that the units are linear to values, in reality, they might look different. I mean, that grafically our function is a linear function, which might be any other one as well. I hope you kow what I mean.

Well you lost me after the first line

Then I picked it up again at "Of course I assumed,"

I thought you would have said here go to this online calculator and put your numbers in and hit the big red button.

I did it in excel by listing the two columns of data and dividing them up. Crude but it did the job.

Thanks for your reply though.

Regards

Mike

Since it's a mathematical problem, there is an infinitive amount of functions suiting to these units, just linear is most likely but the values may rise exponentially as well.