need help

X - 4 Let f(x)= x+7 (a) Calculate f(x) for each value of x in the following table. (b) Make a conjecture about the value of lim X - 4 X- -2 X+2 (a) Calculate f(x) for each value of x in the following table. X - 1.99 - 1.999 -1.9999 x- - 4 f(x) = x+2 -2.1 - 2.01 -2.001 -2.0001 x2 - 4 f(x) x +2 (Type an integer or decimal rounded to four decimal places as needed.) - 4 (b) Make a conjecture about the value of lim X- -2 X+2 x- 4 lim (Type an integer or a decimal.) X- -2X+2