2 replies to this topic

[lirkaren]

Have an eqvation that I wanted to solve (3x²+2x) (5x-8) (3x-14) (-7x²+6x) = -24 so I wnt in to graph and wrote (3x²+2x) (5x-8) (3x-14) (-7x²+6x) -24 then "Draw" I get 3 lines one under 0, one over and one under 1 but when I zoom I get only two lines one at -0,131 and one on 0,1412. Is this a bug?

EDIT: It's just me that sucks at math..

EDIT2: I get five roots but only two lines

Edited by lirkaren, 31 October 2011 - 05:17 PM.

[Joe]

This a very difficult graph to view for a calculator. There are 6 roots: Approximately at x=-0.65, -0.13, 0.14, 0.8, 1.6 and 4.7. The max of the graph is upwards of y=115000 and x=3.9. Since it is 6th order equation (x^6) that means it is "U" shaped (up-side down). Look at these links for a better idea.

WolframAlpha graph

WolframAlpha roots

I am sure the casio is graphing correctly, but it is difficult to get the view window sized correctly.

[lirkaren]

Okay thanks for your awnser ^^