Question

i need help (please) with finding the domain of a function and the book is no help. so please explain.
f(x)=2x

Answer 1

The domain is all x values of a function

Answer 2

So if you plot you function you can determine its domain by looking at how far it extend to the left or right

Answer 3

so you mean just graph it

Answer 4

Graph it to start but you need to understand how to interpret what you see and how to convey the message to your teacher

Answer 5

The domain is negative infinity and infinity do you know how to write that in interval notation?

Answer 6

yes i do

Answer 7

Good you should be able to give your answer then :)