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If A=(4,-5) and B=(7,-9) what is the length of line AB?
A. 8 units
B. 7 units
C. 6 units
D. 5 units


Sagot :

Answer:

5 units

Step-by-step explanation:

Length AB,

Just apply the formula;

Length between two points =square root of [(difference in x coordinates)^2 + (difference in y coordinates)^2]

Length AB =square root of [(4 - 7)^2 + (-5 - - 9)^2]

Length AB =square root of [ (-3)^2 + (4)^2]

Length AB = square root of (25)

Length AB = 5 units