Question

what is the minimum value of -x^2+1?

Answer 1

an upside down parabola has no minimum value

Answer 2

our teacher insists there's something with infinity... i forgot what exactly. i'm trying to remember.

Answer 3

it extend doward towards -inf ; but whether or not that can be considered a minimum value i can recall

Answer 4

-inf is not reachable so it has no minimum in that sense

Answer 5

-(x^2)

Answer 6

Actually, our teacher claims it's a very, very small number. D':

Answer 7

tell him its dy :)

Answer 8

[1,-inf) is proper

Answer 9

but that is range, not minimum

Answer 10

whoops accidentally deleted my comment but all right! thanks.