A straight line is known to have a negative slope

MATHEMATICS · Single correct · CBSE · Mathematics · Straight Lines · Straight Lines

Problem

A straight line is known to have a negative slope. Which one of the following could be its angle of inclination measured anticlockwise from the positive xx-axis? (a) 30∘30^{\circ} (b) 130∘130^{\circ} (c) 210∘210^{\circ} (d) 270∘270^{\circ}

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