need help with Question 2 and 3

webassign.net The AD Interview - YouTube "A Larson 7th Sec. 4.1 - Math 181, section 6407, Summer 1 2021 | WebAssign 2. [-/1 Points] DETAILS LARCALCET7 4.1.009. MY NOTES Find the value of the derivative (if it exists) at the given extremum. (If an answer does not exist, enter DNE.) f ( x ) = (x+ 7)2/3 f ' ( - 7 ) = (-7, 0) 2 X -14 -12 -10 -8 -6 -4 -2 -2- -4 WebAssign Plot 3. [-/1 Points] DETAILS LARCALCET7 4.1.017. MY NOTES Find the critical numbers of the function. (Enter your answers as a comma-separated list.) g(t) = tv 13 - t, t