Which of these functions has a domain of all real numbers except x=4.1?
A. y=2.5x−4.1+2.8
B. y=2.8x+4.1−2.5
C. y=4.1x−2.8+2.5
D. y=4.1x−2.5+2.8

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“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

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