Basic Calculator Keystroke Guide Casio 9750GII Words in BOLD are calculator keys To access any of the menus, use the REPLAY button (large gray button) to scroll left or right, up or down and then press EXE (works like the ENTER key). Getting Started To return to this screen at any time press MENU To return to a previous screen press EXIT To correct an entry after EXE has been pressed, use . To access previous entries, press AC/on and then . ARITHMETIC/MATRIX Menu Entering a rational expression Raising a value (or variable) to a power ( numerator ) ÷ For squaring ( denominator value or variable For other powers value or variable ) x2 ^ power F D NOTE: The decimal will be replaced by the fraction in the form Converting a decimal to a fraction # 」#. 3 For example, will be displayed as 3 」8. To return to a decimal press 8 F D again. Entering an absolute value OPTN Storing a value for x value Storing a value for a variable other than x value Accessing F6 F4 (num) F1 (Abs) ( expression ) EXE X , , T EXE ALPHA choose a variable from letters above keys on the right EXE SHIFT EXP Note: If is entered first you must use the multiplication sign before a number ( x 52). If the number is entered first, you can enter the expression as written (7). SHIFT x2 value Finding a Note: Parentheses may be necessary when entering an expression Finding a SHIFT ( value 3 Finding other roots ( Accessing i Note: Parentheses may be necessary when entering an expression x y) index value SHIFT ^ value Note: Parentheses may be necessary when entering an expression SHIFT 0 5/6/10 GRAPHING MENU Graphing an equation Changing the viewing window for a graph Enter the equation EXE F6 (draw) Note: Be sure to use ( ) around any fraction followed by x. Use REPLAY to scroll as needed OR SHIFT F3 (V-Window) enter values and desired scale Xmin: -6.3 Using "Friendly windows" max: 6.3 These (or any multiple) will ensure integer values for the x variable. scale: 1 Tracing along a graph F1 use as desired (an equation must be entered) Finding a y value from a graph given a value of x (an equation must be entered) Finding an x value from a graph given a value of y (an equation must be entered) Finding the intersection of 2 graphs (2 equations must be entered) Solving an equation by graphing (2 equations must be entered) Finding the x-intercept(s) From the graph Value EXE Note: Your x value must be within your viewing window. Repeat for additional values From the graph F5 (G-Solv) F6 F2 value EXE If more x-values exist, use to find them. Note: The x value that creates the desired y-value must be within your viewing window. From the graph F5 (G-Solv) F5 (ISCT) To find additional intersection points, use . Enter left-hand side of the equation in Y1 and the right-hand side of the equation in Y2. Graph and locate the point(s) of intersection as described above. From the graph F5 (G-Solv) F1 (root). To find additional roots, use . (an equation must be entered) MENU EXE X , , T F D For y, MENU EXE ALPHA − For x, Converting a decimal value obtained in a graph to a fraction Finding the maximum (minimum) point (an equation must be entered.) From graph F5 (G-Solv) F2 (max) or F3 (min) Enter function into Y1 Solving inequalities in 2 variables (shading) F D F3 (TYPE) F5 (CONV) select F2 to F5 to determine shading (Repeat for additional equations) F6 (Draw) Note: The calculator cannot display dashed lines when shading. You will need to indicate this on your paper. Evaluating a function See “Finding a y value from a graph given a value of x” above. (an equation must be entered) 5/6/10 TABLE MENU Accessing a TABLE (one or more equations must be entered) F6 (TABL) scroll to see values NOTE: Only 4 values are visible initially. To see different values, see Adjusting a TABLE below. Adjusting a TABLE (one or more equations must be entered) F5 (SET) Select a start value (suggest –10), EXE select an end value EXE and a step (usually 1). EXE F6 (TABL) 5/6/10