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Mathematics 19 Online
OpenStudy (anonymous):

Alg 2 Help Plz!!! If you have ever swum in a pool and your eyes began to sting and turn red, you are aware of the effects on an incorrect pH level. The pH level measures the concentration of hydronium ions and can be modeled by the function p(t) = –log10 t. The variable t represents the amount of hydronium ions, and p(t) gives the resulting pH level. Water at 25 degrees Celsius has a pH of 7. Anything that has a pH lower than 7 is called acidic, while a pH above 7 is basic, or alkaline. Seawater has a pH just over 8, while lemonade has a pH of approximately 3.

OpenStudy (anonymous):

1. Create a graph of the pH function. Locate on your graph where the pH value is 0 and where it is 1. You may need to zoom in on your graph. Can someone show me how to do this?

OpenStudy (ahsome):

Does it say which program to use. If it says Zoom In, it must be using some sort of software

OpenStudy (anonymous):

Nope, no info was given on the program to use, but the teacher did recommend Geogebra, but it's not required.

OpenStudy (ahsome):

You would need Geogebra, it is much easier than Graphing manually (and more accurate) You can if you want, to do it manually. Type:\[p(t) = –\log10 t\] into Geogebra, it will give a graph. Then you can manually find the pH value

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

wait but what do you mean by p(t)=���log10t.. @Ahsome

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