Y = ax 2+bx+c (a is not equal to 0)

y= 1/x

Logarithmic function y = log (x) y = ln (x)

Trigonometric function: y = tanx

y=sinx

y=cosx

Inverse trigonometric function: y=Arcsinx y=Arccosx y=Arctanx.

Hook function: y=x+ 1/x

Modern function: y=x- 1/x

Abstract function: f(x)= 1 ...