Question

On a graph of a polynomial function....
How do you determine the sign of the leading coefficient?? Anyone?

Answer 1

If we have \(2x^2+5x-3\), then the leading coefficient would be positive.


Parabola, opening upward, leading coefficient positive.

Answer 2

So if the graph given to us does not have the equation, we have to come up with the equation ourselves to determine it

Answer 3

If we have

Since it's going up, leading coefficient would be positive.

Answer 4

or is there a way to just look at the graph and tell what the sign is

Answer 5

ohh ok. what if the graph looks like this

Answer 6

Going down, leading coefficient negative.