E. F5 - Math

1:ValueThis will evaluate the function at a particular value of x. However, the value entered must be in the interval [xmin, xmax].Example: Enter the function

and evaluate the function at x=-2.3 and x=1.7.

Press to access

the Y=Editor. Enter the

function.Press to access

the Window screen and

enter the window shown.Press to draw

the graph.Press to access the

Math menu.Select 1 and press enter.

This is the screen you will

see. Enter the value -2.3

or use the cursors to move

to that point.Press ENTER and the

value of the function at

x=-2.3 is given. Notice that

the point is not shown on

the graph.Now enter the number 1.7.

You do not have to go back

to the menu.Press ENTER and the value

of the function at x=1.7

is shown.