Question

PQ has endpoints at P (-5,4) and Q (7,-5) what is the length of PQ (Simplify your answer)

Answer 1

Answer: 15 Units.

Step-by-step explanation:

Here PQ is a line where P

and Q are its coordinates.

Where P (x1,y1) = -5,4

Q (x2,y2) = 7,-5

To find : length of PQ

Solution : here Length PQ = $\sqrt{( x1 -x2)^2 + (y1 - y2)^2}$

= $\sqrt{(-5-7)^2 + (4+5)^2}$

= $\sqrt{-12^2 + 9^2}$

= $\sqrt{144+81}$

= $\sqrt{225}$

=15 unit