What is the common denominator of in the complex fraction
a
b
c
d

D) 3

Step-by-step explanation:

y + (y-3)/3

This can be written as (y/1) + (y-3)/3

Any number divided by 1 gives the same number.

Here the denominators are 1 and 3.

Common denominator is 1*3 = 3

D) 3

Hope this will helpful.

Thank you.

the answer to the question is a  

it has the same slope and the same y-intercept.