Question

Please help!!!!!

the depth, g(x), of a nautical measuring instrument, is given in feet above or below the surface of the water given the number of days the instrument was in the water, x. if g(x)=-2x-1, which best gives the value of g(4)?

Answer 1

x = 2x - 1

x - 2x = -1

-x = - 1

x = 1

g = 1