# CTE Resource Center - Verso - Database Design and Management (Oracle) Task 1415334615

# Explain the concept of functions.

## Definition

Explanation should include the following:
• A function takes an input, executes a process, and produces an output.
• A function is an implementation of the input-process-output (IPO) model of computing.
• The IPO model receives inputs from a user or other source, performs some computations on the inputs, and returns the results of the computations.

## Mathematics

### A.7

The student will investigate and analyze function (linear and quadratic) families and their characteristics both algebraically and graphically, including
1. determining whether a relation is a function;
2. domain and range;
3. zeros of a function;
4. x- and y-intercepts;
5. finding the values of a function for elements in its domain; and
6. making connections between and among multiple representations of functions including concrete, verbal, numeric, graphic, and algebraic.

### AFDA.1

The student will investigate and analyze linear, quadratic, exponential, and logarithmic function families and their characteristics. Key concepts include
1. domain and range;
2. intervals in which the function is increasing or decreasing;
3. absolute maxima and minima;
4. zeros;
5. intercepts;
6. values of a function for elements in its domain;
7. connections between and among multiple representations of functions using verbal descriptions, tables, equations, and graphs;
8. end behavior; and
9. vertical and horizontal asymptotes.