Answer:
13
Step-by-step explanation:
We must use the distance formula. The distance formula is deviated from the pythagorean theorem and works as if the coordinate points form a right triangle.
Distance formula: [tex]\boxed{d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} }[/tex]
Solving:
[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\\\\ d = \sqrt{(2 - 7)^2 + (3 - (-9))^2} \\\\d = \sqrt{(-5)^2 + (3 + 9)^2} \\\\d = \sqrt{25 + 144} \\\\d = \sqrt{169} \\\\\boxed{d= 13}[/tex]
