Student Page 2.1.3 Graphing with Desmos
Read the following instructions. Open Desmos on a computer, a smart phone, or an electronic tablet. Use the directions to plot the data from The Eyes Have It. What questions do you have? Share your graph with your group.
1. Desmos.
(a)
Google “Desmos.”
(b)
Choose Desmos Graphing Calculator.
(c)
Use with an Internet connection on a computer or download the app onto your smart phone or tablet free of charge.
2. Plotting Points with Desmos.
(a)
Click on the add item menu, “+” (upper left). Choose table.
(b)
Enter the data from your table into Desmos.
(c)
Notice that points are being plotting as you type them.
(d)
You might not be able to see all of your points on the graph.
3. Setting the Graphing Window With Desmos.
(a)
Click on the wrench icon in the upper right corner.
(b)
For the independent variable \(x\text{,}\) enter the low and high values for your data.
(c)
Choose a reasonable step size. The step is the interval between tick marks on the graph.
(d)
Include a title for the \(x\)-axis.
(e)
Repeat for the dependent variable, \(y\text{.}\)
4. Grpahing an Equation.
(a)
On the left side of the screen, type in the equation you want to plot in the next entry line.
(b)
It will automatically appear on the graphing screen.
(c)
Troubleshoot and change the equation if it doesn't fit the data.