Question

what is the exact distance between the point (-2,-1) and the point (6,8) units

Answer 1

Answer:

$\sqrt{145}$units

Step-by-step explanation:

Distance between 2 points

= $\sqrt{(x1 - x2)^{2} + (y1 - y2)^{2} }$

Thus distance between (-2, -1) and (6, 8)

$= \sqrt{ {(6 + 2)}^{2} + (8 + 1)^{2} } \\ = \sqrt{8^{2} + 9^{2} } \\ = \sqrt{145} \: units$