Why isn't it 8n-2 then

According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units

Yuto solved the equation below. what is the solution to yuto’s equation?

Point q is located at (−4,6). point r is located at (8, 6). what is the distance from point q to point r?