Find the distance between the pair of points.

Step-by-step explanation:
use the distance formula
d² = (1 – 1)² + (–8 – ‒1)²
d² = 0 + 49 = 49
d = 7 units
Answer:
7
Step-by-step explanation:
√(1 -1)² + (-1 - -8)²
√(1 -1)² + (-1 + 8)²
√(0)² + (7)²
√0 + 49
[tex]\sqrt{49}[/tex]
7