Question

y=x^2 +2x+5 ,prove that minma exist for this curve and find that minima​

Answer 1

Answer:

Y1=2x+2

Y2=2>0

Therefore minimum exists.

2x+2=0 then x=-1

Hence the curve has minimum value at x=-1

Minimum value =(-1)^2 +2(-1)++5=4