Question

4 -calcule a distancia entre os pontos (2,6) e (4,4) .

5- calcule a distancia entre os pontos (2,1) e (6,4).

Answer 1

.
$d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

4)
(2,6)e (4,4)

$d= \sqrt{(4-2)^2+(4-6)^2} \\ \\ d= \sqrt{(2)^2+(-2)^2} \\ \\ d= \sqrt{4+4} \\ \\ d= \sqrt{8} \\ \\ d=2 \sqrt{2}$


5)
(2,1)e(6,4)

$d= \sqrt{(6-2)^2+(4-1)^2} \\ \\ d= \sqrt{(4)^2+(3)^2} \\ \\ d= \sqrt{16+9} \\ \\ d= \sqrt{25} \\ \\ d=5$