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Chapter 13: Q. 6 (page 526)
Use the distance formula to find the distance between the two points.
The distance is .
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Find the slope of the line through the points named. If the slope is not defined, write not defined.
3. (1, 2); (3, 4)
In Exercises 20 and 21 show that points P, Q, and R are collinear by showing that PQ and OR have the same slope.
P(-1, 3) Q(2, 7) R(8, 15)
Find the slope of the line through the points named. If the slope is not defined, write not defined.
(1, 2); (-2, -5)
Find the coordinates of the point that is equidistant from (-2, 5), (8, 5), and (6, 7).
In Exercises 16-19 a point P on a line and the slope of the line are given. Sketch the line and find the coordinates of two other points on the line.
P(-2, 1); slope =.
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