Question

A line segment has endpoints (4,7) and (1,11). What is the length of the segment?

Answer 1

You can use the distance formula for this:

√(x2-x1)²+(y2-y1)²

so you'll get √(1-4)²+(11-7)² = √(-3)²+(4)² = √9+16 = √25 = 5 and 5 is your answer