Zoom settings Grabbed-sheet icon | Texas Instruments TINSPIRECX

First Steps with TI-Nspire™

Tutorial 4: Graphing

You have just used a direct method for changing the axes, but there are a number of other ways to do this. Press b4 and you will see this Window sub-menu. Option 1 allows you to enter numerical values to determine the extremes of the axes, while the Zoom options, as on the TI-83 and TI-84, provide automatic rescaling.

It is worth mentioning one final very useful way of changing the position of the axes, but without rescaling them. Move the arrow cursor to an empty part of the screen and grab the vacant space. An appropriate icon appears (ù) indicating that you are grabbing the whole working area. Now you can use the Touchpad to reposition the axes as you wish.

Reset the axes using the (default) Zoom-Standardoption from the Window menu before continuing.

The Zoom settings

The grabbed-sheet icon

	Editing, Deleting or Hiding a Function
	Suppose you wish to make f2(x)=x+8. As well as changing g(x)
	in the Calculator application on page 1.1, you can make the
	change in two ways on this page.
	• In the work area, move the pointer to the label,
	f2(x)=g(x) and, instead of grabbing it, double-click on
	the label and an editable box opens up. Change the
	definition and press · to update it.
	• Press ee· to highlight the function history area
	and scroll up to edit f2.
	Functions may be deleted in similar ways, by simply deleting	Changing f2 in the function history
	their definition and pressing ·.	Changing f2 in the function history
	their definition and pressing ·.

To hide a function’s graph click on the Hide/Show button ú

© 2012 Texas Instruments Education Technology

Page 29

Image 29

Texas Instruments TINSPIRECX manual Editing, Deleting or Hiding a Function, Zoom settings Grabbed-sheet icon

Contents

First Steps About this document Contents Appendix TI-Nspire CX Keypad Layout Memory TI-Nspire DocumentsNothing on the screen? Charging the handheld Battery Life Home Screen First Steps with TI-Nspire Tutorial 1 TI-Nspire documents Scratchpad Documents, Problems and Pages Navigating Documents First Steps with TI-Nspire Tutorial 1 TI-Nspire documents Contextual Menus Check list of some key points in Tutorial Basic operations Calculator Application Approximate Calculations History Lesson Menu of maths templates Templates Getting Set Document settings dialog boxEffect of changed settings Use of function notation Some AlgebraWays to define variables Lists of random integers Calculator MenuStatistical Distribution Tables List of defined variables Variables Linked to Documents Various text formatting Instructions Recording results Why use Notes?Making Notes Ways to split the screen You must press /e and then b Splitting the ScreenFormat sub-menu More Options from the Notes Menu An inserted comment Use of proof template and symbolsInteractive Notes Use of Q+A template Asking Questions Check list of some key points in Tutorial Graphs & Geometry Two Views GraphingGraphing Functions Graphing View Changing the Axes Grab and Drag PracticeOpen-hand cursor Grabbed tick mark on the axes Changing f2 in the function history Zoom settings Grabbed-sheet iconEditing, Deleting or Hiding a Function Points and coordinates Tracing GraphsTrace picks out significant points Points of intersection Coordinates and labelled points Analyse Graph Menu Alternative icons Transformed graph and equation Using SlidersManually Moving Graphs Sequence Plotting Check list of some key points in Tutorial View for Plane Geometry GeometryTwo Parallel Lines Drawing the base of the triangle Many options in the Construction menu What’s grabbable?Construct the Triangle Variables and Text Making MeasurementsMeasurement menu Storing the measurement as a variable Dynamic Changes Tidying Up and Using AttributesReady to grab a and slide it Changing the attributes of the triangle Unlocked/Unpinned Points B and C. Try Moving point B Area is now locked Check list of some key points in Tutorial Entering Data as Lists Lists & Spreadsheet One way to enter a formula Typical Spreadsheet Actions Using FormulaeConflict resolution Hand-made function table Capturing DataFunction Tables Graph and table side by side Simple function table Options for function tables Frequency Charts Shoe Sizes and Hand Spans Charts with One VariableOne and Two Variable Statistics Pie Chart displaying categorical data Charts for Categorical DataComparing Boxplots Upper quartile displayed Ready to add a 2nd variable Charts with Two VariablesFitting a Line by Hand and Eye Calculated regression line Statistics Calculations menu Drawing the Regression LineGetting the Stats Working with Frequency Data Dragging on the ChartsSets of statistics Effect of moving a point from here … … to here Texas Instruments Education Technology Check list of some key points in Tutorial Measured circle Multiple RepresentationsDraw and Measure a Circle Spreadsheet for Data Capture Setting up a scatter plot Data capture is under wayTwo Scatterplots Collecting Just a Little Data Fit a Straight Line Go to Town with Data CollectionLinear relationship Moving a straight line by hand Not a linear relationship Basic quadratic ready for fitting… … and dragged into place Different Approach to ScatterplotsRegression