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
