Some graphs created with Desmos.What is a Functional?In general, a functional is a function of functions: a function that depends on other functions.There are a few modifications on the basic definition. Which one you use depends on what field you’re working in....
But the College Board still has to make the test difficult to differentiate student skill levels, sothe SAT needs to test these concepts in strange ways. This trips up students who don't prepare, but it rewards students who understand the test well. Here's an example: Find the area of t...