Question

Find the range of y if x is real
y=(x^2-x+1)/(x^2+x+1)

Answer 1

this is not going to be easy

Answer 2

depends on the tools at your disposal
what class is this?

Answer 3

the easiest way would be to draw the graph

Answer 4

not really

Answer 5

since you will not be able to read the exact value off of the graph
not to mention the fact that graphing will not be that easy

Answer 6

- on a graphic calculator I mean

Answer 7

yea drawing it manually would be tedious

Answer 8

This is class 10 to 11. We are not allowed to use a calculator