Use the graph to find the equation of the Polynomial - Let’s learn the steps to do this…

Learn how to write the function of a polynomial given it's graph.
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[@henrikmadsen3443]

I’ve been watching your videos as preparation to the praxis parapro exam. My math score was 24/25. Thank you for the simple explanations.

[@bobwineland9936]

The 3 factors are ( X+3), ( X-2), and ( X-6) Multiplying those out gives X^3 -5X^2 -12X +36.

[@harrymatabal8448]

Now these are the kind of problems that make you think. Good video. Thanks

[@kelseyhoward3332]

I love that he is always doing exactly what I’m working on !!!!!! You are the besttttt 🎉

[@MF-ty2zn]

This video only showed where the line intersected the x axis when y equals zero. You can get the other points on the line by plugging in other numbers. Plug in 0 for x. f (x) = 36 f (×) = y y = 36 when x = 0 That's where the curve is on the y axis where the y axis intersects the x axis at zero.

[@Kleermaker1000]

There are 3 solutions for Y = 0: if X = - 3, Y = 0, if X = 2 , Y = 0 and if X = 6, Y = 0. So you get the function f(X) = (X + 3)(X - 2)(X - 6). This results in: f (X) = X^3 - 5 X^2 - 12 X + 36.

[@chrisfarrugia5397]

Great !! Thank you !

[@sweethomes674]

Excellent thanks 😊

[@justanotherguy469]

Thank you!

[@riazahmed-ir3vm]

Superb

[@everbestethiomusic]

What would be the answer if we were asked the y intercept? Is it 36?

[@bobwineland9936]

Yes. When X is 0, Y =36

[@bradleymartinez4876]

Just here to refresh my algebra and calculus …

[@lidarman2]

Now if there are less than 3 x intercepts, then things get complex! ;)

[@bobwineland9936]

I had hair once 😊