Determine if the result of each product is a positive or negative integer

Can someone explain the elimination method to me for this problem?

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls