Question

What is the length of line segment A B
https://ave.brainhoney.com/Resource/32487839,0/Assets/flvs/Assessments/res0011/09_04c_52_002.jpg

Answer 1

Do you know the distance formula, by any chance?

Answer 2

You can think on the line as two parts. One part on the positive side of the y axis another on the negative side. The line is 4 is the positive direction and 5 in the negative direction, therefore the total length is 9.

Answer 3

Or just do 4-(-5) which equals 9

Answer 4

thank you

Answer 5

No problem :)

Answer 6

But not all lines are going to be straight so that won't work all the time.