Find the Equation of a Quadratic Function from a Graph (a less than 0)

This video explains how to determine two forms of the equation of a quadratic function based upon a graph.

[commadantx]

Apppreciated. I spent a while searching for this.

[Chinesetakeout]

Already more helpful than my professor.

[darth_platypus]

What if my parabola doesn't have x-intercepts that lie exactly where the graph lines intersect?

[cathlynejoymanuel]

Sir, what app did you use for presenting that one?

[agentp_gaming]

how does this have 22k views but only 19 likes, 2 disliked, and now 2 comments

[nothathamzah]

this video was so helpful. god bless you <3

[vipirfw]

Too easy Ohh wait I'm too old for this

[renujoshi]

either you don't know or you don't know how to use the identity (a+b)² = a² + 2ab + b² which is just a quick or shortcut method to square a binomial. duh!