Final answer:
To find the dependent variable for the function f(x) = 2x + 3 when the independent variable is 6, substitute 6 into the function and calculate: f(6) = 2*6 + 3, which equals 15. Thus, when x=6, the dependent variable is 15.
Step-by-step explanation:
The question involves finding the value of the dependent variable in a given linear function when the independent variable has a specific value. The linear function provided is f(x) = 2x + 3. To solve for the dependent variable when x=6, substitute 6 into the function:
f(6) = 2×6 + 3
f(6) = 12 + 3
f(6) = 15
Therefore, when the independent variable is 6, the dependent variable (the value of the function) is 15.