Please help don't wait my time with the link

Step-by-step explanation:

g(x) = (5/8)^x is an exponential function.  Because 5/8 is less than 1, this function decreases constantly.  You should start with "easy" values of x, such as 0, 1, 1/2, and calculate the corresponding y-values.

x    y = (5/8)^x     Plot these points:

0             1           (0, 1)

1              5/8        (1, 5/8)

2              25/64   (2, 25/64)

10            0.009    (10, 0.009

-1               1.6         (-1, 1.6)

Observe that the y-intercept is (-1, 1.6), and that as x increases, the y values decrease.  As x grows larger and larger, the curve of the graph approaches the x-axis.  We call that axis the "horizontal asymptote).