Find-a-point-on-the-curve-y-x-2-2x-3-at-which-the-tangent-is-parallel-to-the-x-axis-

Question Number 147753 by Odhiambojr last updated on 23/Jul/21

F i n d a p o i n t o n t h e c u r v e

y = x^{2} - 2 x - 3 a t w h i c h t h e t a n g e n t i s

p a r a l l e l t o t h e x - a x i s

Answered by Olaf_Thorendsen last updated on 23/Jul/21

\frac{d y}{d x} = 2 x - 2 = 2 (x - 1)

\frac{d y}{d x} = 0 \Leftrightarrow x = 1 and then y = - 4