pay at the end of the week
age
D
1) Using the variables x, and y we can tell that in a function, for instance, the dependent variable is y because it depends on the entries labeled as x.
2) Examining these cases, we can tell that
a) If the payment of Hong depends on the amount of data he puts in. The dependent variable is the pay at the end of the week
b) We can tell that in this part there is a relation age x muscle mass we can tell that the muscle mass depends on age. So the independent variable is age since we can insert arbitrary values for ages and check how the muscle mass behaves.
c) In this last case, the outputs of a function are always dependent on the input, on the entries. So, we can tell that the independent variable is D
Thus, these are the answers.