Algebra - Function

Deprecated: Required parameter $id follows optional parameter $type in /home3/allentea/public_html/interactive/application/models/Content_model.php on line 269
Algebra - Function

Tools: pointer cross off highlighter pencil eraser

DIRECTIONS: Select all that apply.

Which of the following are functions?

x = 5

{ 1, 2, 3, 4, 5 }

{ (3,4), (5,4) }

{ (-2,3), (4,5), (7,-2), (-2,6) }

y = x + 4

{ (2,3), (4,5), (7,-2) }