Question

How do I know whether a vertex opens upward or downward given (h,k)?

Answer 1

r u doing absolute value functions/equations?

Answer 2

polynomial functions

Answer 3

without using a calculator or anything btw

Answer 4

You can't without knowing what the function itself is

Answer 5

ok with the vertex (6,-1)

Answer 6

You can't tell how a function will behave from knowing the vertex alone. The vertex is just a point.

Answer 7

how would you tell then?

Answer 8

idk

Answer 9

I tried to explain to it to you, but I guess you don't understand