PLEASE SHOW WORK

Consider the function at) 2 43:3 511'. on the closed interval [ 1, 2]. Find the exact value of the slope of the secant line connecting ( 1, f( 1)) and (2, f(2)). By the Mean Value Theorem, there exists 0 in ( 1, 2) so that m = f '(c). Find all values of such c in ( 1, 2). Enter exact values. If there is more than one solution, separate them by a comma. Check