This is no real data science but if you need to show some nice and for everyone understandable charts you can try some of these:

  • sin function:
    plot(sin, -pi, pi)

    sinus01

  • parabola X^2:
    > x=-100:100
    > plot(x^2)
    

    parabola01

  • root sqrt(x):
    > x=0:100
    > plot(sqrt(x))
    

    root01

  • hyperbola 1/x:
    > plot(1/x, type="l")

    hyperbola01

  • playing with sin function:
    plot(x*sin(6*x), type="l")

    sin02

    plot(x*sin(3*x), type="l")

    sin03

  • atan:
    plot(atan, -10, 10)

    atan01