Asked by Nikeziwe
How to sketch graph of f(x)=x^3-7x^2+15x-9
Answers
Answered by
Steve
you know the general shape of a cubic. The only real trick is finding where the roots are, then sketch a cubic curve through the roots.
A little synthetic division shows that
f(x) = (x-1)(x-3)(x-3)
So, draw your cubic curve so that it crosses at x=1 and is tangent at x=3.
A little synthetic division shows that
f(x) = (x-1)(x-3)(x-3)
So, draw your cubic curve so that it crosses at x=1 and is tangent at x=3.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.