Question

What is the distance between point R (−1, 7) and point T (−7, 7) ?

A 1 units
B 6 units
C 7 units
D 8 units

Answer 1

Explanation:

distance = √(x₂-x₁)² + (y₂-y₁)²

= √(-1 - [-7] )² + (7 -7)² =√(-1 +7 )² +0

= √ (6)² = 6 units