If $\theta$ is the inclination of a line, its slope is defined as:
A$\cot\theta$
B$\tan\theta$
C$\sin\theta$
D$\cos\theta$
Answer & Solution
Correct answer: B. $\tan\theta$
Slope (gradient) m = tanθ, where θ is the inclination of the line with the positive x-axis.
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