Answer:
sqrt85
Step-by-step explanation:
Point A: (—2, 7)
Point B: (7, 9)
Know that:
AB=
[tex] \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } [/tex]
=
[tex] \sqrt{ {( - 2 - 7)}^{2} + ( {7 - 9)}^{ 2} } [/tex]
[tex] \sqrt{81 + 4} = \sqrt{85} [/tex]
