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

CTE Resource Center - Verso

Virginia’s CTE Resource Center

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.

Related Standards of Learning

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.