Answer:

Step-by-step explanation:
I do believe 9 and 3<span />
Answer:
27
Step-by-step explanation:
find square root of 81 and multiply by 3
9 x 3 = 27
For this case we must indicate the graph corresponding to the following equation:

We found the cut points:
X axis: We do

Y axis: We make 

The graph is shown in the attached figure.
Answer:
See attached image