Question

What is the coordinate of the stationary point of the following function f(x) = x2 - 4x + 5 ​

Answer 1

Answer:

f(x)=x

3

−9x

2

+24x−12

f

′

(x)=3x

2

−18x+24

x

2

−6x+8=0⇒x=4,2

f(2)=8−36+48−12=8∴(2,8)

f(4)64−144+96−12=9∴(4,4)