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Chapter 13: Q. 9 (page 532)
Find the slope of the line through the points named. If the slope is not defined, write not defined.
(6, -6); (-6, -6)
The slope of the line is undefined.
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12, Find an equation of the circle that has the given center and radius
a. Center (2, 5); radius 3.
b. Center (-2, 0); radius 5.
c. Center (-2, 3); radius 10.
d. Center (j, 4); radius n.
Given points A, B, and C. Find AB, BC, and AC. Are A, B, and C collinear?
If so, which point lies between the other two?
15. A(-5, 6), B(0, 2), C(3, 0)
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)
Discover and prove something about the quadrilateral with vertices
R(-1, -6), A(1, -3), Y(11, 1), and J(9, -2)
In Exercises 27-32 find and then compare lengths of segments.
Quadrilateral TAUL has vertices T(4, 6), A(6, -4), U(~4, -2), and L(-2, 4), Show that the diagonals are congruent.
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