I cant get this right, I haven't gotten any right? Any step by step help?

Evaluate the indicated limit by evaluating the function for values shown in the table and observing the values that are obtained. Do not change the form of the function. _ 5Vx+21 m x>4 x_4 x 3.900 | 3.990 | 3.999 | 4.001 4.010 | 4.100 x) I I I I I I I (Type integers or decimals rounded to five decimal places as needed.) |imf(x)= x>4 (Type an integer or a decimal.)