9514 1404 393
Answer:
11.4
Explanation:
Put the given coordinates in the distance formula and do the arithmetic.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((1 -(-8))² +(7 -0)²) = √(9² +7²) = √130
d ≈ 11.4 . . . . units
The distance between the two points is about 11.4 units.