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20 votes
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Explain why f(x) = 4x + 5x + chas a greater minimum thang(x) = 9x + 10x + c regardless ofthe value of c.

User Ctyar
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1 Answer

10 votes
10 votes

we have to use the second derivative criteria


f(x)=4x^2+5x+c
f^(\prime)(x)=8x+5
f^(\prime)^(\prime)(x)=8
g(x)=9x^2+10x+c
g^(\prime)(x)=18x+10
g^(\prime)^(\prime)(x)=18

User Marnina
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