<p>Matrices are really easy to do with a calculator! so learn how.
Parametric are just two equations pretty much in my opinion
Set mode to PAR and enter the equations…
f(x) = function of x… x is the input or f(x) is the Y pretty much
- f(x) = -y
f(-x) means you are inputing a value after you have negated that value
-f(-x) = negate the final value after inputing a negated value into the equation.
Descartes rule of signs?? isn’t that where the Quadrants and either x is pos or y is pos…etc?
functions crossing over axes? idk what you mean.</p>