Answer with explanation:
→If in an Inequality,consist of ≤ or ≥ less than and equal to, or greater than or equal to sign ,and then if we draw the graph of inequality , we have to include points on the line also.
→But if ,in an Inequality, there is either, < less than or > ,greater than sign,then these kinds of Inequality has dashed Boundary Line that is points on the line are not included.
→Out of four Inequalities given,
Only inequality , 1,which is, x + 7 y > 3, bears >, this sign among , < or >,sign.
Option A : x + 7 y > 3 has dashed boundary line.