Question: Let be the angle between the line y = mx + b and the x-axis [Figure 28(A)]. Prove that m = tan . 0

Let θ be the angle between the line y = mx + b and the x-axis [Figure 28(A)]. Prove that m = tan θ.

0 S (A) y = mx + b T X

0 S (A) y = mx +b T X

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