The length can be found using the Pythagorean Theorem...
c^2=a^2+b^2 and in this case:
d^2=(dx^2)+(dy^2)
d^2=(3-7)^2+(12-9)^2
d^2=-4^2+3^2
d^2=16+9
d^2=25
d=5
So the length of AB=5 units.
Answer:
quadrant 2
Step-by-step explanation:
because its a + and - and only quadrant 2 can have it
1/2 is equivalent to 5/10 not 2/10
B; make sure to make the denominators equal before adding
