Question

What is the length of the line segment PQ on the coordinate grid?

10 units
20 units
30 units
50 units

Answer 1

it is 50!

i hope this helps you

Answer 2

Focus on the x coordinates of the points P and Q
The distance from -20 (x coord of P) to 0 is 20 units
The distance from 0 to 30 (x coord of Q) is 30 units
Add up those distances and we get 20+30 = 50

Answer: 50