Please help with the following questions

(9/ questions. towers will contribute towards the assessment. 1. (a) Given f(z) = determine; (i) All critical points. (ii) All maxima and minima. (ini) The interval(s) where the function is increasing and decreasing. (iv) All possible inflection points. (v) The interval(s) where the function is concaved up and concaved down. (vi) The x and y interceptions. (vii) All asymptotes. 15 (b) Use the epsilon-delta (6-6) definition of limits to show that lim T' + 3 =4