Question

which of these functions below could be defined by a cubic equation?

Answer 1

I think its the first one

Answer 2

Cubic equations have two "curves" quadratic have one "curve". Your functions have 2 curves so they are both cubic. The difference between the two are that the 1st has only 1 real root, while the second one has 3 real roots.

Answer 3

its multiple choice.. so which one would I choose lol

Answer 4

I would need to say the 2nd because it has 3 real roots. The 1st would involve imaginary roots.

Answer 5

okay thank you (:

Answer 6

NP

Answer 7

First behaves more like a cubic, the end behaviour of the second is a little weird.

Answer 8

Odd question though... with that second graph looking ~similar to a cubic.

Answer 9

The arrows aren't quite straight, but I tend to think since this is a rough drawing anyway, can't really rely on that too much, but there is a case for that observation. Cubics always have 2 "bumps," and both have 2 "bumps", if the second has more, I don't see it for certain

Answer 10

Notice the ends kinda flatten out, they don't appear to slope up/down as they should... but this is why it's an awkward question, we don't know what kinda viewing window it is.

Answer 11

The first is clearly a cubic, the second is debateable so i'd go with the safe choice

Answer 12

yes, I agree on second thought

Answer 13

It it the first one? @OtonoGold