Which expression can be simplified to find the slope of the trend line in the scatterplot?

On a graph, a trend line goes through points (2, 87) and (8, 78).
StartFraction 2 minus 8 Over 78 minus 87 EndFraction
StartFraction 78 minus 87 Over 8 minus 2 EndFraction
StartFraction 78 minus 8 Over 87 minus 2 EndFraction
StartFraction 8 minus 2 Over 78 minus 87 EndFraction

B - StartFraction 78 minus 87 Over 8 minus 2 EndFraction

Just took the test ;)

hey i know i'm super late but the answer is B. on ed

Step-by-step explanation:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer