Introduction to addition or subtraction of fractions with different denominator 3/5+1/3

You must find the same denominator by finding the closest common factor of both.
In this case it would be 15 because both 5 and 3 go into 15.
You then have to multiply the numerator by the number you multiplied to get the denominator.
So you multiply
Nevermind just look at the pic.

Answers: the graph is translated down 1 unit and the domain and range of g(x) is the same as the domain and range of f(x).

The correct answer is -4