2questions in one! ! will give brainiest if work is

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

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