I think maybe either B or C, ope I helped, sorry if I didn't!!
Answer:
dy/dx at x=6 is 0.334
Step-by-step explanation:
The center difference method requires that the values of the function are given in equal intervals which is the case, and allows one to find the value for x = 6 using those of the function for x = 5.5 and for x = 6.5 as follows:

B.
The line starts at the origin and goes down by two.
Answer:
it's 4
Step-by-step explanation: