![]() |
|
![]() |
![]() |
![]() |
Definition | ![]() |
||
. |
|
This correspondence is a function. | This correspondence is not a function. |
![]() |
||
|
f(-3) | = | 2 · (-3) - 5   Substituting the input, -3 | |||||||||||||||||||
  | = | -6 -5 | |||||||||||||||||||
  | = | -11. |
![]() |
||
|
f(5 · x) | = | 2 · (5 · x) - 5   Substituting the input, 5 · x | |||||||||||||||||||
  | = | 10 · x - 5. |
![]() |
||
|
f(1 - 2 · x) | = | (1 - 2 · x)2 - 3 | Substituting the input, 1 - 2 · x |
  | = | 1 - 4 · x + 4 · x2 - 3 | Squaring 1 - 2 · x |
  | = | 4 · x2 - 4 · x - 2. | Simplifying |
Copyright © 1998-2001 MathAid, LLC. All rights reserved. |