Question

find distance between p(3,-5) and Q (1,-9)​

Answer 1

by using distance formula

root over X2-X1 whole square+y2-y1 whole square

root over 4+16

root20

distance is 2root5

Answer 2

Answer:

PQ = √(1-3)² + (-9-(-5))²

= √(-2)² + (-4)²

= √4 + 16

= √20

= √4.√5

= 2√5 units