Question: Let l be the line through the points P and Q in Fig. 16. (a) If P = (2, 4) and Q = (5, 13),

Let l be the line through the points P and Q in Fig. 16.

(a) If P = (2, 4) and Q = (5, 13), find the slope of the line l and the length of the line segment d.

(b) Suppose that the point Q moves toward P along the graph. Does the slope of the line l increase or decrease?Y . Q d 1 X

Y . Q d 1 X

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