Question

Find the values of C such that the graph of F(x)=x^4+2x^3+Cx^2+2x+2 is concave upward everywhere @Mathematics

Answer 1

concave upwards implies the 2nd derivative is less than zero.

Answer 2

do you know how to calculate the 2nd derivative?

Answer 3

You mean the 2nd derivative is GREATER than zero.

Answer 4

yes, @JamesJ is right, I only read the "upward everywhere" part and assumed the wrong shaped curve. this site may help explain more: http://www.math.hmc.edu/calculus/tutorials/secondderiv/