Answer:
-2
Step-by-step explanation:
I mean i use the slope formula and you just plug in the values of the coordinates.
13/5a - 8/5
= 35/15a + 4/15a - 8/5
= 39/15a - 8/5
= 13/5a - 8/5
what's the question?
subtracting 9.1 - 12.9 is -3.8
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