Mass Energy.
A linear equation.
A straight line equation
The equation E=mc^2 relates to the equivalence of mass and energy, showing that a small amount of mass can be converted into a large amount of energy. This is a key concept in understanding nuclear reactions and the energy release in processes such as nuclear fission and fusion.
Einstein's most famous equation, E=MC2 (Energy=Mass x Speed of Light (in a vacuum) Squared) is the equation for Mass-Energy equivalence, which is that the mass of a body is equal to its energy content. It is the core basis for obtaining a nuclear reaction.
a function
7
"y x 2 2x -3 is not any kind of equation because it does not have an equals sign (=).
Its kind of hard to draw a graph in pure text... Try plugging your equation into www.wolframalpha.com/ ;)
It seems to be some kind of simultaneous equation with too many equality signs in it.
That would be called mass energy, or total internal energy.
organisms that manufacture food from chemical energy
A Diophantine Equation. In order to solve it, you should use Euclide's algorithm.