Cubic Function

Cubic Function

• In mathematics, a cubic function is a polynomial equation in which the highest occurring power in the unknown is the third power.
  


• The standard form of a cubic equation is: ax3 + bx2 + cx +d=0.
  


• The cubic function equation is: f(x) = ax3 + bx2 + cx + d.
  


• The factored form of the cubic equation is: g(x)=a(x-p)(x-q)(x-r)
  


• Example:
  

f(x)= x3+2 (Green Line)

f(x)= x3+5 (Blue Line)

f(x)= x3+0 (Pink Line)

f(x)= x3-1 (Grey Line)

f(x)= x3-3 (Purple Line)

• A cubic equation has no exponent larger than 3.

REFERENCES:
http://jwilson.coe.uga.edu/EMT668/EMT668.Folders.F97/Wynne/Cubic/Cubic%20Functions.html

http://orion.math.iastate.edu/algebra/sp/xcurrent/applets/cubicfunction.html

http://www.answers.com/topic/cubic-equation?cat=technology