Answer:
-2
Step-by-step explanation:
-2 over 1 or -2
The formula is y= y2-y1 over x2-x1
7= x1
4=y1
8=x2
2=y2
2-4 over 8-7
2-4=-2
8-7=1
The answer would be -2 over 1 or -2
Hope this helped a lot!!!
