You can add a decimal point at the end of number then zero. Example....
2.40
______
5| 12.00
-10
________
20
-20
_______
0
2.4
Answer:
D.
Thats what gauth.math said
A line perpendicular to another will have the opposite sign and be flipped
ex: slope is 4/5 the other lines slope will be -5/4
(-2,-1) (2,-3)
slope formula
y2-y1/x2-x1
-3-(-1)
____
2-(-2)
-3+1
___
2+2
-2
___
0
the slope of the perpendicular line is 0/-2 which is just 0
6 times 2 is 12. B is than answer
