1. 1.
    +2
    answers will be here.
    1st question : you can use discriminant formulas or description of derivative x-x0 x (m) = y-y0
    2nd question ; you must find denom.= 0 which are 2 and -1. degrees denom, numer. are not same.so there is not h.a .
    to sketch ; you must find intercepts,abs max,min hint : f'(x)=0 ,concavity,inc. and decreasing intervals,and sketch!
    ···
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