8.2: Getting set up with Desmos

Desmos is a wonderful free calculator that has statistical capabilities. Not only can we use Desmos to do calculations, but we can also use its platform to engage in activities that help develop a deep understanding of challenging mathematical concepts.

In order to utilize desmos to its fullest, you will need to create an account. This way, any progress you make in an activity will be saved. You can also access feedback that I leave for you when you have an account.

To create an account:

1. Go to student.desmos.com 
2. Click “create account”
3. Enter your email, your first AND last name (as it appears on the roster), and create a password. Make your password easy to remember so that you can easily sign in for activities in our class
4. Click the Create Account button

That's it! Now you are ready to complete any Desmos activities.

Example: 

•  To graph an equation, type the equation into the next line on the left (i.e:, y= 3/4x -1).
•  To restrict the domain, type your restricted domain in set notation after the function (for example: y =3/4x - 1 {—2 < x < 4}).
•  Click along your graph to identify specific points on the function. By doing this, you are identifying and choosing your domain and range for the graph. This will also assist you to fill in the function table, as you create your art instead of waiting until the end.
• Click on the Gear that says "Edit List" above your functions to change the color or line style of each equation.
•  Make sure you save your graph!

           

You can input equations using any form. You are not restricted to y = f(x) functions like graphing calculators. Finding intersection points and intercepts is simple. Just click on the point where the graphs intersect and its coordinates will be displayed!

Clicking the tiny keyboard icon in the bottom left corner allows you to pull up additional symbols and functions. Knowing some basic code to input equations makes this much faster though. For instance, typing “pi” and “theta” and “infinity” will input π, 𝜃, and ∞. Typing “int” will start a definite integral. Typing “^” allows you to quickly put in an exponent and “sqrt” and “cbrt” start square roots and cube roots.  

 

 

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