Question

What are the cut points for -x^2+9>0?

Answer 1

3

Answer 2

Isn't there two? Or is it just one? O.o

Answer 3

sry, only -3

Answer 4

I see you guys typing but nothing is showing up... ?

Answer 5

answer is -3

Answer 6

-x^2 +9 > 0

9 > x^2

x = 3, -3

Answer 7

Oh I see. Thank you guys!

Answer 8

the graph is a parabola with vertex at -9y. It cross the x axis at 3, -3. But you have
-x^2+9>0 so 3 is not included

Answer 9

the open interval from -3 to 3 is greater than 0 (-3,3)

Answer 10

\[x ^{2}-9<0\]

Answer 11

3 not an option