Question

What is the distance between R(–3, 1) and S(4, 5)?

Round to the nearest tenth.

Answer 1

R(–3, 1), S(4, 5)
calculate vector:
v=(4-(-3),5-1)=(7,4)

distance=length of vector=√(7²+4²)=√(49+16)=√(65)≈8.06226
rounded to the nearest tenth: 8.1