The function g(x) = -6x + 3

Compare the slopes and y-intercepts.
Both the slopes and the y-intercepts are the same.
The slopes are different but the y-intercepts are the same.
The slopes are the same but the y-intercepts are different.
Both the slopes and the y-intercepts are different.

The slopes are the same (-6), but the y-intercepts are different (3 for g(x) and 0 for the other function). Hence, the correct answer is the slopes are the same but the y-intercepts are different.