Simply use the distance formula. :)
[tex]1.) \: 4[/tex]
[tex]2.) \: 6[/tex]
[tex]3.) \: 3[/tex]
[tex]4.) \: 8[/tex]
[tex]5.) \: d = \sqrt{ {(3 - ( - 1))}^{2} + {(1 - ( - 2))}^{2} } \\ = \sqrt{ {4}^{2} + {3}^{2} } \\ = \sqrt{16 + 9} \\ = \sqrt{25} \\ = 5[/tex]
[tex]6.) \: d = \sqrt{ {(2 - ( - 4))}^{2} + {(3 - ( - 5))}^{2} } \\ = \sqrt{ {6}^{2} + {8}^{2} } \\ = \sqrt{36 + 64} \\ = \sqrt{100} \\ = 10[/tex]
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