Answer:

Step-by-step explanation:
We have been given that A girl has a square pool with an area of 81 square feet.
Let us find find the each side length of pool by taking square root of 81 as:


We have been given that girl adds a patio which is 3 feet wide around the pool, so each side of pool after adding patio will increase by 6 feet.
So new sides of pool would be 
The total area of the pool and patio would be product of each side.


Therefore, the total area of the pool and patio combined would be 225 square ft.
Place the x values (if there are two of the same x value you only include it once) in the first box vertically like:
5
-3
6
2
Place the y values (if there are two of the same y values only include it once) in the 2nd box vertically like:
1.2
7
-3
Now draw lines from your x values to their corresponding y values.
A function may NOT have two y-values assigned to the same x-value, but it may have two x-values assigned to the same y-value.
So this is a function!
Answer:
4x + y = 4
Step-by-step explanation:
Equation of Line in point slope form is given as:
Plug
in the above equation we find:
