Re: Draw two functions in a graph, one of them does also have a parameter.

*To*: mathgroup at smc.vnet.net*Subject*: [mg90189] Re: Draw two functions in a graph, one of them does also have a parameter.*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Wed, 2 Jul 2008 05:27:27 -0400 (EDT)*Organization*: Uni Leipzig*References*: <g4d2ut$er8$1@smc.vnet.net>*Reply-to*: kuska at informatik.uni-leipzig.de

Hi, a) try the correct syntax f[x_] := -x^2 + 6 x g[a_][x_] := a x b) Manipulate[ Plot[{f[x], g[a][x]}, {x, 0, 7}], {a, 0, 3} ] ?? Regards Jens Felipe Mannshardt wrote: > Is there a way to do a Plot do draw this two functions in the same graph ? > I am asking because i am having problems due the parameter "a". > > I have, > > f(x)= -x^2 + 6x > g(x)= ax > > i want to draw them in the same graphic and with a from 0 to 3 . . . > > Can not think of a way of doing this, due the "a" parameter . . . > > Plot[{f[x],[g[a][x]},{x,0,7},{a,0,3}] > > > Can some help me out with this small issue ? > > > > In Latex, > > > > \text{Clear}[x,f,g] > > f[\text{x$\_$}]\text{:=}-x^2+6x > > \text{Nullstellen} \text{von} f[x] > > > > \text{Solve}[f[x]==0,x] > > \{\{x\to 0\},\{x\to 6\}\} > > \text{Fl{\" a}che} \text{von} f[x] > > > > \int_0^6 f[x] \, dx > > 36 > > \text{Clear}[x] > > g[\text{a$\_$}][\text{x$\_$}]\text{:=}a*x > > \text{Graphisch} \text{dargestellt} > > > > \text{Plot}[f[x],\{x,-0.2,6.2\}] > > > > \text{Plot}[\text{Table}[g[a][x],\{a,0,3\}],\{x,0,2\}] > > > > > > > >