Question

Which system of inequalities has a solution set that is a line?

Answer 1

Answer: the first option:

x+ y ≥ 3
x + y ≤ 3

Explanation:

The solution set of that system is the intersection of the solution sets of each inequality.

The solution set of the inequality x + y ≥ 3 is the line x + y = 3 and all the region up and to the right ot that line.

The solution set of the inequality x + y ≤ 3 is the same line x + y = 3 and all the region down and to the left of that line.

So, you can see that the intersection of both sets is the line x + y = 3. Therefore, this is the solution.

Answer 2

First choice! 
Hope this answer can help you!