1. Determine if the following functions are continous at the interval I (a) f(x) = x – 1; I=[-2,2] %3D %3D (b) f(x) = x² – 5; I= [-5,5) .. %3D %3D (c) f(x) = a – a +1; I= (2,+00) %3D , 1=(-1,1) , - (d) f(x) = %3D %3D 3 -: (e) f(x) = 3.x ; I = (-2,2)* %3D %3D 22 – 4 (f) f(x) = : 1 = (2, 3) - %3D %3D 2

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