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Question
Solve each of the following inequations graphically using XY-plane:
y ≤ - 3.5
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Solution
Consider the line whose equation is y ≤ - 3.5 i.e. y = - 3.5
This represents a line parallel to X-axis passing3through the point `(0, - 3.5)`
Draw the line y = - 3.5
To find the solution set, we have to check the position of the origin (0, 0).
∴ the coordinates of the origin does not satisfy the given inequality.
∴ the solution set consists of the line y = - 3.5 and the non-origin side of the line which is shaded in the graph.
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