The high temperature was 12 degrees above zero, and the low temperature was 5 degrees below zero. What is the low and high temperature written as a positive or negative number? What is the difference between the high and low temperatures?

1-

Step-by-step explanation:

1 -+ 12  2= -5

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1