Congruent parabolas .

Geometry Level 4

The set of points (x,y) whose distance form the line y=2x+2 is the same as the distance from (2,0) is a parabola . This parabola is congruent to the parabola in standard form y=K x 2 x^{2} for some K which equal to?

4 5 \dfrac{4}{\sqrt{5}} 12 5 \dfrac{12}{\sqrt{5}} 5 12 \dfrac{\sqrt{5}}{12} 5 4 \dfrac{\sqrt{5}}{4}

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