5-5213. Function Analysisk Reading Coordinates on a Graph LineTrace lets you move a pointer along a graph and read out coordinates on the display.1. From the Main Menu, enter the Graph mode.2. Draw the graph.3. Press !1(TRACE), and a pointer appears in the center of the graph.*14. Use d and e to move the pointer along the graph tothe point at which you want to display the coordinates.When there are multiple graphs on the display, pressf and c to move between them along the x-axis ofthe current pointer location.• At this time, pointer coordinate values appear at the bottom of the screen and to the right(or left) of the pointer. Also, supplementary lines appear from the pointer to the x-axis andy-axis.• You can hide the supplementary lines by pressing !c. To redisplay hidden lines,press !f.5. You can also move the pointer by pressing v to display the pop-up window, and theninputting an x value.The pop-up window appears even when you input an x value directly.To exit a trace operation, press !1(TRACE).*1 The pointer is not visible on the graph when it is located at a point outside the graph displayarea or when an error of no value occurs.• You can turn off display of the coordinates at the pointer location by specifying “Off” for the“Coord” item on the Setup screen.• The following shows how coordinates are displayed for each function type.Polar Coordinate GraphParametric GraphInequality Graph (Y≥≥, Y≤, X≥, X≤)(Y≥≥, Y≤, X≥, X≤)(Y>, Y<, X>, X<)(Y>, Y<, X>, X<)
