# Function App; Getting Started With The Function App - HP NW280-200X User Manual

Prime graphing calculator.

## Function app

### Getting started with the Function app

Function app
The Function app enables you to explore up to 10 real-
valued, rectangular functions of y in terms of x; for
example,
y
=
1 x
Once you have defined a function you can:
create graphs to find roots, intercepts, slope, signed
area, and extrema, and
create tables that show how functions are evaluated
at particular values.
This chapter demonstrates the basic functionality of the
Function app by stepping you through an example. More-
complex functionality is described in chapter 4, "An
introduction to HP apps", beginning on page 59.
The Function app uses the customary app views: Symbolic,
Plot and Numeric described in chapter 4.
For a description of the menu buttons available in this
app, see:
"Symbolic view: Summary of menu buttons" on
page 76
"Plot view: Summary of menu buttons" on page 86,
and
"Numeric view: Summary of menu buttons" on
page 94.
Throughout this chapter, we will explore the linear function
y
=
1 x
2
and
y
=
x 1
y
5
.
3
2
.
=
x 1
3
103