Question

Find the distance between the points P(2, 5) and Q(-1, -4).[A] 2[B] 90[C] -12[D] 3V10

Answer 1

we need to use the distance between two points formula

P=(2,5)

then

x1=2

y1=5

Q(-1,-4)

then

x2=-1

y2=-4

$d=\sqrt[]{(2+1)^2+(5+4)^2}=\sqrt[]{9+81}=3\sqrt[]{10}$