Final answer:
The x-values are the independent variables and the y-values are the dependent variables. The missing value for y when x=-1 is 6.
Step-by-step explanation:
The x-values in the table are the independent variables. The independent variable is the variable that is controlled or manipulated, and in this case, it is represented by the x-values.
The y-values in the table are the dependent variables. The dependent variable is the variable that changes with (or is dependent on) the value of the independent variable, and in this case, it is represented by the y-values.
The missing value in the table for x=-1, can be found by substituting x=-1 into the equation y = 2 - 4x. When we substitute x=-1, we get y = 2 - 4(-1) = 2 + 4 = 6. Therefore, the missing value for y when x=-1 is 6.