Find all the intervals on which the graph of the function is concave upward: f(x) = x^2 + 1/ x^2

Match each financial concept with its correct situation time value of money store of value personal disposable income consumer credit angela chooses between having $1,000 now, and investing it in a savings account so that she can have $1,050 a year from now. jane has $2,500 monthly to spend after she pays taxes david saves his money for the future so he can live comfortably in retirement lester uses a credit card to purchase a new ipad, as he cannot pay the entire amount now um. all rights reserved. there to search