Question

with quadratic functions how do you know if a parabola on a graph is supposed to open upwards or downwards?

ex. y=-4(x+1)2+4

[The 2 after the bracket is a square)

Answer 1

a parabola on a graph opens upwards if the "a" value in y=a(x+b)^2+c is positive. If "a" is negative, it opens downwards.

in the example it would open down, because the "a" value is negative

Answer 2

OHHHH !!!
okaay thanks !