Are the following functions continuous on the set of real numbers? Justify your answers:

(i) f(x) = 7 [video]

(ii) f(x) = e [video]

(iii) f(x)  = log 19 [video]

(iv) f(x) = 7x4 - 5x3 - 3x + 1 [video]

(v) g(x) = sin(4x - 3) [video]

(vi) h(x) = (5x2 + 7x + 2) / x3 + x2 + x + 3 [video]

vii. g(x) = 13x2 + 16x + 19 [video]

viii. f(x) = 5x [video]

ix. f(x) = 32x - 15x [video]

x. f(x) = e5x+7  [video]