Shape With A Focus And A Directrix

How do you find the vertex, focus and directrix of x^2-4x+y+3=0? Focus conic sections directrix geometry distance mathsisfun Focus and directrix of parabola explained with pictures and diagrams

How do you find the vertex, focus and directrix of x^2-4x+y+3=0? | Socratic

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Conic sections: focus and directrix

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