(a) The figure at the top of the next column shows the
Chapter 4, Problem 56(choose chapter or problem)
(a) The figure at the top of the next column shows the parabola y x2 6x and a circle that passes through the vertex and x-intercepts of the parabola. Find the center and radius of the circle. y O x A B y= AB 1x 12 1x 32 x 4 . (b) Suppose that a circle passes through the vertex and x-intercepts of a parabola y x2 2bx, where b 0. Show that the circumference of the circle as a function of b is c pb2 p. 57. In
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