PLEASE HELP FIND DOMAIN AND RANGE

domain-
range-
is this relation a function?

Domain: (-2, -1, 0, 5).

Range: 3 and 4.

Function: Yes.

Step-by-step explanation:

In order for a relation to be a function, we will have a set of inputs and a set of outputs. Various inputs may have the same output, but one input cannot have various outputs.

In a graph, if the points make a horizontal line, then the relation is still a function. However, if they made a vertical line, the relation would NOT be a function.

(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