Answer:
4
Step-by-step explanation:
1.5 -(-2.5)
Change -(- into addition
1.5 + 2.5 = 4
Slope = (y-y)/(x-x)
= 500 - 300 / 70 - 80
= 200 / -10
= 20 / -1
= -20
B could not be the coordinates.
I drew a sketch
That means "is this the right amount of keys" and that ia what it means
