Question

Find the points on the curve given below, where the tangent is horizontal. (Round the answers to three decimal places.)
y = 6 x ^3 + 5 x^ 2 - 3 x + 3
p1=
p2=

Answer 1

Horizontal tangents have zero slope.
Take the derivative, which gives the slope, equate it to zero and solve for x.

Answer 2

tangent is horizontal means parrallel to x axis ..and rest aum already told you