Thread: Point Of Inflection

Show that for any cubic function of the form , there is a single point of inflection where the slope of the curve at that point is

Can you show us the work you completed so far?

u find second derivative of function
f"=c-(b^2/3a)? and thn u sovle for wht?
i dont even know i m rit or wronge

once you find the second derivative set it equal to 0 and solve for x

6a+2b=0

but solve it for x



Now replace x in the first derivative with the x you just solved for in the 2nd derivative and simplify

Originally Posted by ilovemymath

6a+2b=0

No, 6ax+ 2b= 0. Solve for x.