Answer:
1) a. A(0,10) , B(0,3)
AB = [tex]\sqrt{0^2+(10-3)^2}[/tex]
AB = 7
b) A(0,3) ,B(4,0)
AB = [tex]\sqrt{4^2+3^2}[/tex]
AB = 5
c) A(-22,6),B(-24,-21)
AB = [tex]\sqrt{(-22+24)^2+(6+21)^2}[/tex]
AB = 27.074
d) A(1,-2) , B(14,6)
AB = [tex]\sqrt{(14-1)^2+(6+2)^2}[/tex]
AB = 15.26