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OpenStudy (daryan):
What is the vertex of the parabola whose equation is x=y^2-4y+2, and in which direction does it open?
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OpenStudy (campbell_st):
well the parabola is concave right... and has a line of symmetry of y = 2 to find the vertex, complete the square in y... it needs to be in the form \[x = (y - k)^2 + h\]
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