Question

(2) The distance between the points P(-1, 1) and Q(5, -7) is ...

Answer 1

it may help you. look once

Answer 2

Question

The distance between the points P(-1, 1) and Q(5, -7) is _______

Answer:

ANSWER IS 10 UNITS

step by step solution :

the formula of distance between 2 points = $\sqrt{{(y\left}\atop{2}} \right. }-y\left \ \atop{1}} \right)+{(x\left}\atop{2}} \right. }-x\left \ \atop{1}} \right)$

${x\left}\atop{1}} \right.} = -1\\{x\left}\atop{2}} \right.} = 5\\{y\left}\atop{1}} \right.} = 1\\{y\left}\atop{2}} \right.} = -7$

Now substitute these values in the given formula

$=\sqrt{(-1-(5))^{2} +(1-(-7))^{2}} \\\\=\sqrt{-6^{2} + 8^{2} }\\\\=\sqrt{36+64} \\\\=\sqrt{100} \\\\=10 units$

ANSWER IS 10 UNITS