In Pre-Calculus, Why is 2 considered Quadratic & not something like Bi-dratic..?

Question

Extra Credit from my Pre-Calculus if I can explain to my teacher why 2 is considered Quadratic and not something like Bi-dratic since 'bi' represents 2 and 'quad' represents 4. Please try your best to answer this question throughouly and logically, Thank You :)

Answer 1

Because 2 refers to SQUARE, As in Square root

Square = 4 sides, ( not 2 sides.)

Then, 4 sides = Quadratic

2nd degree equations are solved using 2 as the base.

Good luck, I hope this is useful 4 u.

Answer 2

Biquadratic
\Bi`quad*rat"ic\, a. [Pref. bi- + quadratic: cf. F. biquadratique.]

(Math.) Of or pertaining to the biquadrate, or fourth power.

Biquadratic equation (Alg.), an equation of the fourth degree, or an equation in some term of which the unknown quantity is raised to the fourth power.

Biquadratic root of a number, the square root of the square root of that number. Thus the square root of 81 is 9, and the square root of 9 is 3, which is the biquadratic root




quadratic:

Of, relating to, or containing quantities of the second degree.

Answer 3

The answer is here http://en.wikipedia.org/wiki/Quadratic_function
It comes from the latin term for square: quadratus