Joe is going for a walk. He walks at a speed of 3 miles per hour for 7.5 miles. For how many hours does he walk?
1 answer:
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Given:
The graph of an inequality.
To find:
The inequality for the given graph.
Solution:
From the given graph it is clear that the boundary line passes through the points (6,0) and (0,-4). So, the equation of the line is
The area under the boundary line is shaded and boundary line is a dotted line it means the points on the line are not included in the solution set. So, the inequality sing must be <.
Therefore, the required inequality for the given graph is .