Question

P(-4,3) Q(8,-3) what is the length of line segment PQ? Help please

Answer 1

Use the distance formula. Sqroot((x2 - x1)^2 +(y2 - y1)^2):
We plug in points so it looks like this:
Sqroot(8 + 4)^2 + (-3 - 3)^2
Can you take it from here or do you need more?

Answer 2

The formula you need to use is:
\[d = \sqrt{(x _{2} - x_{1})^{2} + (y _{2} - y _{1})^{2} } \]