GeoGebra Basics

In the GeoGebra window:

• Click on the Algebra icon and type where it says "Input"
• On the next available input line, type 2x-3
• Do the graphs intersect? If so, how many intersection points are there?

• Can you move slider m so that the graphs don't intersect? If so, do this. What is the value of m?

Try It Yourself:

• Type another function on an input line and then use the "undo" button. After that, use the "redo" button.
• Click on the circles to the left of your inputs. What do you notice? (Type it in the box below.)

Try It Yourself:

• On the next available input line, type Intersect(f,g). Then move slider m. What do you notice?
• Try the command Slope(f). What do you notice?

Try It Yourself:

• Move slider m to 1 (or, if easier, type it in)
• Click the three dots to the right of function f. Click on "Table of Values" and enter start value -5, end value 5, and step 1.
• Repeat the above for function g.
• Use the graph and the table to find the intersection point(s) of f and g. Write these in the box below.
• Experiment by moving slider m and seeing how the graph and your table changes.