Finding Cubic Functions From Its Graph

In this video I demonstrate how to find the function of a cubic polynomial from its graph.

[halfnormie]

Bro explained it better in 6 minutes then my math methods teacher did in a class. Thanks for the vid

[water]

I am really impressed by the fact you can write the other way around. Thank your for helping, this is really helpful

[celesta_]

Thank you so much! You just saved my life! 🙏❤

[ayaulymfaizulla]

thank you so much. You just saved my life

[PojehsR]

You just saved me from my college math final lol cant believe im doing these problems still in college

[sydtaggart]

How come when you write the polynomials in the equation, if the x intercept is positive you write it as a negative in the equation?
Ex: in the first graph an x int was 4 and you wrote ( x-4)
Should I do that for all of mine? Thanks for the video, it was super helpful!!

[egitamakloe]

so r u writing backwards on that board?

[colmmcmahon]

What does the "a" value stand fotr