Please help my son

Question

He needs to know the length of a rectangle from the 2 vertices I will be entering. The vertices are (-10, -7) and (-10, 18) what is the length of the rectangle? We can't figure it out, thanks so much

Answer 1

The distance would be to add the 18 above the x-axis to the 7 below the x-axis whIch is a total of 25

You would get the same result using distance formula

d=sqrt[ (x₁-x₂)² +(y₁-y₂)²]

Where (-10, -7) would be (x₁,y₁₎ and

(-10, 18) would be (x₂,y₂₎