Answer:
Positive
Step-by-step explanation:
Slope: (6-4)/(45-30)
= 2/15
In y-intercept:

. Hence:

The intersection is the point
The GCF of 27 and 72 is 9 / The 3rd option!
Factoring the top and bottom of the fraction we get
(x + 4)(x - 3
---------------
(x + 4) (x - 4)