Question

Guys I suck at math, can someone help me!
this involves teaching!

Answer 1

What are cubic functions? Explain?
Basically teach me!

Answer 2

In mathematics, a cubic function is a function of the form
f(x)=ax^3+bx^2+cx+d,\,
where a is nonzero; or in other words, a function defined by a polynomial of degree three. The derivative of a cubic function is a quadratic function. The integral of a cubic function is a quartic function.
Setting ƒ(x) = 0 produces a cubic equation of the form:
ax^3+bx^2+cx+d=0.\,
Usually, the coefficients a, b,c, d are real numbers.

Answer 3

http://en.wikipedia.org/wiki/Cubic_function

Answer 4

Can you type bit by bit, so that I can process?

Answer 5

Like, the definition of a cubic function? It's a polynomial whose degree is three; ie

\[f(x)=x^3\]
is a cubic function, as well as
\[ f(x) = x^3-2x^2+x-3\]

The highest power any given variable raised to is 3.

like Charlotte posted, it takes the form

\[f(x)=ax^3 + bx^2 + cx +d\]
where the only requirement is that a is not zero.

Answer 6

I think you can ignore the integral and derivatives part of Charlotte's post - it's good to know, but that's all calculus.

Answer 7

OK. I see so far and it is going to intersect the y axis 3 times, right?

Answer 8

It'll have two points of inflection is all that you can say, and if it's a function of x will intersect the x axis at least once, and the y axis only once.