Well you gotta find out what x means
A vertical line has the equation of x = a
If the vertical line goes through a certain point, as in this case, then the y value is irrelevant. It can be anything. It is the x value that is the one you need to use.
So the answer is x = 1. This equation has no slope that is defined.
Solving the equation
we get value of p = -4
Step-by-step explanation:
We need to find the value of p in the equation 
Solving to find value of p:

So, solving the equation
we get value of p = -4
Keywords: Solving Equations
Learn more about Solving Equations at:
#learnwithBrainly
Answer:
25.56 is the surface area of the pool.
Hope this helps! :)