MTK Peminatan kelas 11

titik stationer

y = -1/4 (2 - x)⁴

y'= -(1/4)(4)(2 - x)³(-1)
y'= (2 - x)³
y' = 0
2- x = 0
x= 2
titik stationer  x= 2 , y= - 1/4 (2 - x)⁴--> y = 0
titik stationer (x,y) = (2,0)

y' = (2-x)³
y" = 3(2-x)² (-1) }
y' = -3 (2 - x)²
x=2 --> y" = 0
titkk (2,0) adalah titik belok