The vertex (the only vertex) of the graph y = |2x-7| - c is there

where 2x - 7 = 0, i.e. at x =  = .

See the figure below.

This is a piece-wise function, with standard form being: , where (h, k) is the vertex

RETRACTION!



The coefficient of x in the piece-wise function is > 1, so to get the equation of the piece-wise function, the equation becomes: . 

Therefore, the vertex, or (h, k) is at the coordinate point: , which places the vertex in the 4th quadrant where h or the

x-coordinate is > 0, and k, or the y-coordinate is < 0 

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