Wednesday

September 2, 2015
Posted by **tim** on Tuesday, May 31, 2011 at 4:56am.

- Math -
**Henry**, Wednesday, June 1, 2011 at 3:35pmY^2 = X(X-4)^2.

Let X = 0:

Y^2 = 0(0-4)^2 = 0,

Y = 0.

Let X = 1:

Y^2 = 1(1-4)^2 = 9,

Y = sqrt9 = +- 3.

(0,0),(1,+-3),(2,+-3.46),(3,+-1.73),

(4,0),(5,+-2.24).

Let X = -5:

Y^2 = -5(-5-4)^2 = -405,

Y=sqrt(-405) = sqrt(405*-1) =+- 20.1i.

(-5,+-20i),(-4,+-16i),(-3,+-12.1i),

(-2,+-8.49i),(-1,+-5i).

i = imaginary = sqrt(-1).