Question

The parabola y = x² - 4 opens:
-up
-down
-left
-right

Answer 1

The parabola of y = ax^2+bx+c will open up if a > 0 and will open down when a < 0

Answer 2

down, because the curve goes upward

Answer 3

So for example, y = 2x^2-5 will open up since a > 0

Answer 4

and y = -3x^2+6x will open down since a < 0

Answer 5

thanks!! :)

Answer 6

so what answer did you end up going with?

Answer 7

well I finally did it on my calculator and I ended up going for up and it was correct. ._.

Answer 8

that's great, you are correct since a = 1 which is greater than zero.

Answer 9

ohh alright :)