How to do evaluate each function

Verticle line test

Step-by-step explanation:

If you're given a line do the vertical line test if the line goes through more than one line than it is not a function, but if it goes through only once it is a function

the two may have that, even a breakdown is probably offered

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3