example, if we are going to obtain cordinate values of the
intersection of y=.5x^2-5
after selecting the y=f(x) type in the 'Graph' menu, first, input the expression .5x^2-5
in the expression input text box,
and press 'Enter'
or click on the icon (or menu) button 'Draw graphs: Perform
input the expression -x+2 and draw its graph by pressing
(3) Select the
'icon of shape like a flickering
point' in the 'trace' menu. And a flickering
point flickers at the first start point.
By Using arrow-keys and keys such as PgUp, Pg Dn,
move the flickering point to the intersection.
At this time, the
coordinate value of the flickering point is represented
in the text display window.
Move the flickering point to the intersection one
by one and watch the coordinates value in the text display