Question

In which direction does the parabola open?

y = 3x2 – 5x – 10


A.
left

B.
up

C.
right

D.
down

Answer 1

@Hero @s3a

Answer 2

I'd say B.

Answer 3

If the coefficient of the leading term is positive, then the parabola opens up
If the coefficient of the leading term is negative, then the parabola opens down

Answer 4

So its it b(up) or D(down)

Answer 5

im confused @hero @s3a

Answer 6

What Hero and I said does not contradict.

Answer 7

I gave you the answer and Hero explained why the answer is what it is.

Basically the number in front of x^2 (which is 3) is positive therefore, the parabola opens upwards.