SOLUTION: Given that D(x) = 2x, select all of the following that are true statements. 1. D(x) is a function. 2. x is the dependent variable. 3. D(6) = 3 4. D(x) is a direct variat

Algebra ->  Functions -> SOLUTION: Given that D(x) = 2x, select all of the following that are true statements. 1. D(x) is a function. 2. x is the dependent variable. 3. D(6) = 3 4. D(x) is a direct variat      Log On


   

Question 246794: Given that D(x) = 2x, select all of the following that are true statements.
1. D(x) is a function.
2. x is the dependent variable.
3. D(6) = 3
4. D(x) is a direct variation.
5. D(x) is a rule for the set of points (5, 10), (6, 12) and (-2, -4).
Answer by solver91311(24713) About Me  (Show Source):
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1. Yes. There are no possible values for that will yield more than one value for .

2. No. The value of depends on the value of , not the other way around. is the independent variable.

3. No. See for yourself:

4. Yes. When gets bigger, gets bigger. When gets smaller, gets smaller.

5. You decide. If all of the following are true, then the answer is yes. Otherwise, the answer is no.








John