Answer:
b
Step-by-step explanation:
The range are the values that y can take.
From the graph we can see that all defined values of y are below the x- axis
Thus range is y < 0 → b
You would use 1.07 for that
Pretty sure that you got it right..
I believe the answer is graph A.
As x increases (moving to the right), y decreases (moving down).
This is the formula for slope between two points:


so...


4
The slope is 4
Hope this helped!