Answer:
The answer to your question is below
Explanation:
Part A.
-3x + 7y = 13
Solve the equation for "y"
7y = 3x + 13
y =
![(3)/(7) x + 13](https://img.qammunity.org/2020/formulas/mathematics/high-school/mc5rdzlxm2l6ho8f9mqbawcptw6p053fz0.png)
Part B.
Two lines are parallel if their slopes are the same
Two lines are perpendicular if their slope are opposite reciprocals
Slope of the first line =
![(3)/(7)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bv3hjbpeai6kci2gsd6ia5to78u2y08xf2.png)
Slope of the second line =
![(3)/(7)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bv3hjbpeai6kci2gsd6ia5to78u2y08xf2.png)
Conclusion: the lines are parallel because their slopes are the same.