Question

two students did a problem as above, but one used x for the first variable and y for the secon variable and the other student used x for the second variable and y for the first variable. how did thier answers differ and which one, if either, was incorrect?

Answer 1

The choice of variable names doesn't affect the correctness of the answer.

Step-by-step explanation:

When solving a problem with two variables, the choice of variable names doesn't affect the correctness of the answer. In this case, one student used x for the first variable and y for the second variable, while the other student used x for the second variable and y for the first variable. The only difference is the way the variables are labeled; the answers themselves are the same.