Answer:
n = - 10
Step-by-step explanation:
10(-3n + 8) = 380
-30n + 80 = 380
80 - 380 = 30n
30n = - 300
n = - 300 : 30
GIVEN BY POINTS :-
( -1, 9) , ( 4 , -3)
Here ,
Using Distance formula :