54:84___(÷2)
27:42___(÷3)
9:14
You find the slope of the line by using the formula 
where x1 and y1 is the first point, and x2 and y2 are the second point.
I believe your answer is going to be -6 7/3. Reciprocals are the opposites of a number, so I switched the sign on the 6 and made it -. When dealing with fractions, the reciprocal is essentially just flipping the numerator and denominator, which is how I got 7/3.
I hope I helped. Best of luck!
Answer:
699
Step-by-step explanation:
