Answer:
Answer c: 1000
Explanation:
Set f(x) = 2 log x - 6 = 0 as a first step in finding the zero or zeros.
2 log x - 6 = 0 becomes log x - 3 = 0 after dividing all three terms by 2.
Then log x = 3, and because "log x" has base 10, the value of x is 10^3, or 1000.