Question

Find the domain of the function. f(x) = -2x + 4

I'm pretty sure I encountered a problem just like this earlier today...but my mind's still blank.

Answer 1

the domain will be
all values "x" can safely take, without throwing off some extraneous value for the function

Answer 2

so one can say in this case, "x" can pretty much take anything you throw at it really, thus \(\large x\in \mathbb{R}\)

Answer 3

wait...what? o.o

Answer 4

it can take anything? so are you saying it's \[\infty \]

Answer 5

\(\large (-\infty , ~\infty )\)

Answer 6

it can take all the values on number line - from left extreme, all the way to the right extreme

Answer 7

Thank you both ♥