Question

Find the distance between the points (3, 8) and (-1, 9).

Square root 15
Square root 15
Square root 17

Answer 1

√17

Explanation:

The distance formula is ...

d = √((x2 -x1)² +(y2 -y1)²)

Filling in the point values, we have ...

d = √((-1-3)² +(9-8)²) = √(16 +1)

d = √17