Answer: D: Quadratic Equation.
Explanation:
y = a*x^2 + b*x + c is a polynomial of degree = 2, this is also called a quadratic equation (because the largest exponent is 2)
Then the correct option is D: Quadratic Equation
The other options are used for:
A: Subtraction:
This is for the difference between two numbers, a subtraction is X - Y.
B: Quotient:
This is for a division between two numbers, the quotient between X and Y is:
X/Y.
C: Scientific Notation:
This is used to simplify the notation of numbers with a lot of digits. Instead of write numbers like:
13,000,000
We can just write this as:
1.3*10^7