The choice that does NOT show the relationship of the ratio for making purple paint out of red paint and blue paint is:
(3, 4)
This notation represents a pair of numbers rather than the ratio relationship. The correct ways to express the ratio of red paint to blue paint are:
- 3 to 4
- 3 4 (though this could be confusing, it's often interpreted as a ratio when seen in context)
- 3:4
The notation (3, 4) does not clearly represent the ratio.