To find a common denominator, find a multiple that both fractions have. In this case, the common denominator is 18 because 9 can get to 18 by 9 x 2 and 6 can get to 18 by 6 x 3.
2. Convert your fractions to both have a common denominator.
No, it doesn’t have a positive slope because the negative sign in front 2 means that the slope is negative and going down. If the slope would’ve been positive than there wouldn’t have been a negative sign and it would go up.
