7.megan wants to build a fence around her pool. the pool is 28 feet long by 23 feet wide. the fence is to be 15 feet from the edge of the pool.

(picture of a sqaure with 28ft on the top and 15ft on the left side of the sqaure and 23ft on the right side.
a. what are the outside dimensions of the area surrounding the pool?
b. how many feet of fencing will she need?

•53ft by 58ft; 222ft
• 53ft by 58ft; by 111ft
•222ft by 58ft; 53ft
• 38ft by 43ft; 162ft

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1

too hard the other guy did it

step-by-step explanation:

step-by-step explanation:

d would equal 12