Question

What is the distance between point R (−1, 7)(−1, 7) and point T (−7, 7)(−7, 7) ? 1 units 6 units 7 units 8 units

Answer 1

It would be six units because 7-1=6

Answer 2

The distance between two points A(x₁,y₁) and B(x₂,y₂) is:
dist (A,B)=√[(x₁-x₂)²+(y₁-y₂)²]

The distance between point R(-1,7) and point T (-7,7) would be:
dist (R,T)=√[(-1+7)²+(7-7)²]=√(36+0)=√36=6

Answer: 6 units.