Graph four-point cubic functions Plot a four-point cubic function using the grapher. See some of these operations in animated gifs. Plot a 4-point cubic function Step 1. Select the 4-point cubic tool. Step 2. Drag the point in the graph to locate the first point. Step 3. Click and drag to locate the second, third, and fourth points. You can add more than 1 function to your graph. See Plot a 4-point cubic function in action Select a 4-point cubic function Step 1. Select the selection tool. Step 2. Select the line/point. If your line is selected, it's orange. When a point is selected, it changes to a blue bulls-eye/double circle. See Select a 4-point cubic function in action Change/Delete a 4-point cubic function To change a 4-point cubic function, choose 1 Drag the line to a new position. Press Shift plus an arrow key to move the function up, down, left, or right. To change point, choose 1 Drag the point to the new position. Press Shift plus an arrow key to move a selected point. If your instructor allows it, click Edit Coordinates, enter the new coordinates in the pop-up window, and click Submit. To remove a 4-pt cubic function, press Delete on your keyboard or in the tool palette. ¨
Plot a 4-point cubic function
