1-12 - Graphing Parabolas An equation of a parabola is given. (a) Find the vertex, focus, and directrix of the parabola. (b) Sketch a graph of the parabola and its directrix. 1. y = 4x 2. x = hy 3. = y 4. x = -8y %3D 5. x + 8y = 0 6. 2r – y? = 0 7. (y – 2) = 4(x + 2) 9. (y – 3) + x = 0 8. (x + 3) = -20(y + 2) 10. 2(x + 1)² = y 11. x + 2x = 2y + 4 12. x = 3(x + y)

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