Question

Do the functions open up or down:
1. Y=(x+2)(x-1)
2.y=-4(x-2)²+2
3.y=2(x-1)²-6
4.y=5(x+5)(x-2)
PLEASE HELP!

Answer 1

Look at the leading coefficient. If it's negative the graph opens down; if it's positive it opens up.

Answer 2

okay, what are the characteristics when a function, particularly a quadratic is up and or down?

Answer 3

omg he just killed it…

Answer 4

@nincompoop lol wat happened?

Answer 5

So number 1 would open up?

Answer 6

Genius12
@

Answer 7

what is a leading coefficient? what are terms?