To construct point C on AB, click the Point tool and click segment AB (not the points).To display the label of the two points, select the two points, click the Display menu from the menu bar and click Show Labels from the list.To construct our slider, click the Segment tool from the toolbox, and construct a horizontal segment on the drawing area.To show the coordinate axes, click the Graph menu from the menu bar and click Define Coordinate System from the drop-down list.If you want to extend the domain of your slider, you just multiply the quotient of AC and AB by your desired number and subtract half of that desired number from the product.įigure 2 – The slider control consisting of point C on segment AB. This means that our minimum value is 0 – 10 = -10 and our maximum value is 20 – 10 = 10. To facilitate negative values, we will subtract 10 from result of our computation. This means that our minimum value is 0 and our maximum number is 20. We will divide the measure of AC by the measure of AB,then multiply it to 20. To create a slider, we will construct segment AB, and construct point C on AB. We will use the idea of ratio in creating a slider here. The construction of slider in Geometer’s Sketchpad is somewhat different compared to the slider in GeoGebra. The slider that we will create here is very similar to Graphs and Sliders 1 and Graphs and Sliders 2 posts in the GeoGebra Tutorial Series. For instance, if you have a slider m with domain -10 through 10, then moving the slider rightward will increase the value of m. A slider is a visual representation of a number. Instead of typing each equation, we can use the sliders to assign values to parameters like m and b. There is a better way to explore the relationship of the parameters of functions and their graphs.
Graph the following functions and observe how b affects the graph of the function y = mx + b. Using steps 1 through 4, graph the following functions and observe how the value of m affects the graph of y = mx