Answer:
B. and D.
Step-by-step explanation:
When you multiply exponents, you add them
3 + (-6) = -3
The base always stays the same

is one answer

Do this formula for the question and you get 1/(7^3)
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

Where:
m: It is the slope of the line
b: It is the cut point with the y axis
We have according to the data:

Thus, the equation is of the form:

We substitute the given point:

Finally, the equation is:

Answer:

I believe it could be either B or D.
On a graph then it is in the top left of the grid.