Given that D( x ) = 2 x , select all of the following that are true statements.
D( x ) is a direct variation.
D( x ) is a function.
D( x ) is a rule for the set of points (5, 10), (6, 12) and (-2, -4).
x is the dependent variable.
D(6) = 3
- D( x ) is a direct variation. (True)
- D( x ) is a function. (True)
- D( x ) is a rule for the set of points (5, 10), (6, 12) and (-2, -4). (True)
- x is the dependent variable. (False)
- D(6) = 3 (False)