y=-3x^{2}+18x-27

x1 = 0

Calculamos y1 sustituyendo x1 en la ecuación: y1 = -27

Esta es también la ordenada del simétrico: ys = -27

xs = x1 - 2·(x1 - x_eje) = -b/a - x1

xs = 6

y=x^{2}+4x+3

x1 = -1

y1 = ...

ys = ...

xs = ...

y=x^{2}+2x-1

x1 = -1

y1 = ...

ys = ...

xs = ...

y=x^{2}+6x+7

x1 = -3

y1 = ...

ys = ...

xs = ...

y=3x^{2}-18x+26

x1 = 1

y1 = ...

ys = ...

xs = ...

y=-3x^{2}+12x-12

x1 = -1

y1 = ...

ys = ...

xs = ...

y=2x^{2}+4x

x1 = -5

y1 = ...

ys = ...

xs = ...

y=-2x^{2}-8x-10

x1 = 3

y1 = ...

ys = ...

xs = ...

y=-x^{2}-6x-7

x1 = 0

y1 = ...

ys = ...

xs = ...

y=-x^{2}+1

x1 = -1

y1 = ...

ys = ...

xs = ...

y=-3x^{2}-6x-2

x1 = -4

y1 = ...

ys = ...

xs = ...

y=-2x^{2}+12x-17

x1 = 5

y1 = ...

ys = ...

xs = ...

y=3x^{2}+1

x1 = -4

y1 = ...

ys = ...

xs = ...

y=-2x^{2}+1

x1 = 0

y1 = ...

ys = ...

xs = ...

y=x^{2}-4x+3

x1 = -2

y1 = ...

ys = ...

xs = ...

y=3x^{2}+2

x1 = 0

y1 = ...

ys = ...

xs = ...

y=-3x^{2}-6x-4

x1 = 0

y1 = ...

ys = ...

xs = ...

y=x^{2}-4x+4

x1 = 4

y1 = ...

ys = ...

xs = ...

y=-3x^{2}+12x-13

x1 = -1

y1 = ...

ys = ...

xs = ...

y=-3x^{2}+18x-27

x1 = 1

y1 = ...

ys = ...

xs = ...

y=3x^{2}-18x+26

x1 = -5

y1 = ...

ys = ...

xs = ...

y=2x^{2}-12x+19

x1 = 0

y1 = ...

ys = ...

xs = ...

y=3x^{2}+12x+13

x1 = -5

y1 = ...

ys = ...

xs = ...

y=-x^{2}-4x-4

x1 = 1

y1 = ...

ys = ...

xs = ...