Differentiate y(x)=x^2 + 2x + 1, find the turning point and classify it as minimum or maximum.
dy/dx=2x + 2
Turning point is where dy/dx=0, so when x = -1
When x=-1, y=0.
d^2y/dx^2=2 > 0 therefore minimum.
JF
dy/dx=2x + 2
Turning point is where dy/dx=0, so when x = -1
When x=-1, y=0.
d^2y/dx^2=2 > 0 therefore minimum.
