Final answer:
The vertical intercept of the function g(x) = x(9-2x)(13-2x) is found by evaluating the function at x=0, which gives us g(0) = 0, thus the vertical intercept is (A) 0.
Step-by-step explanation:
The vertical intercept of a function is found by setting the variable x to 0 and solving for g(x). In the given function g(x) = x(9−2x)(13−2x), we substitute x with 0 to find the vertical intercept:
g(0) = 0(9−0)(13−0) = 0
Therefore, the answer to the question 'What is the vertical intercept of the function g(x) = x(9−2x)(13−2x)?' is (A) 0.