Answer:
Applying the formula for the distance between two points
(-4,3) and (5,16)
x₁=-4 y₁=3
x₂= 5 y₂=16
d = √(y₂-y₁)²+(x₂-x₁)²
d= √(16-3)² + (5-4)²
d=√170
d=13.04units.
The distance between these points give the length of the line connecting them.
Hope this helps!