Answer:
C.
Step-by-step explanation:
if wrong then pls contact me in the comment section
slope = rise over run = y/x
A (-1,3) slope = 3/-1 = -3
B (1,2) slope = 2/1 = 2
C (-3,-1) slope = -1/-3 = 1/3
2 lines need to be negative reciprocals in order to be a right triangle
negative reciprocal of -3 is 1/3
so this is a right triangle
The answer to ur question is 20.94395.
(8) = x +1
same thing as 8 = 1x
divide both sides by 1 and x = 8 Y= 8
