Answer:
-4
Step-by-step explanation:
The slope is usually a function of the differences in y divided by the differences in x, and it can be described in the following equation,
(1)
We can select any of the two points to be our first point, let's say, J(1,-4) is point 1, so J (x1,y1). In other words, 
and by the same way, for K(-2,8). Therefore, 
. By substituting these values in equation 1, we can deduce the following
Evaluate the discriminant. How many real and imaginary solutions does each have?
3x^2 - x + 3 = 0
You are right. Transitivity means, that:
if a = b and b = c, then a = c
(here a = x, b=5 and c = y).
What does 154 mean in your question?
I assume your room is a square. If so, each corner of the room has a 90 degree angle for a total of 360 degrees.
The angle that is repeated, I assumed based on your obscure question, is 90 degrees.
So, x = 90 degrees.
