differential Calculus

2. Determine if the following functions are continuous at the given value of x. a. f (x) = 3x2 + 2x + 1 atx = -2 . . .." . .. .. A b. f (x ) = 1 at x = 2 x-2 . .. ... .. ". ."...0. c. h(x) x+1 at x = 1 .: . : x2-1 . . . .. d. g(x) X at x = 8 - .. ... "