Answer:
The length of AB is 10.
Explanation:
The length of AB would be the distance between A and B. This can be found by subtracting A from B (B from A would also work), and then taking the absolute value of what we get. In other words:
L = |B - A| where L is the length of AB.
We know that A = -3 and B = 7, so now we just have to plug in A and B into the equation L = |B - A| and solve for L (the length of AB).
L = |B - A|
Plug in -3 and 7 for A and B, respectively
L = |7 - (-3)|
Remember: a - (-b) = a + b
L = |7 + 3|
Simplify.
L = |10|
The absolute value of 10 is 10.
L = 10.
The length of AB is 10.
I hope you find this helpful. Feel free to ask me questions if the do not understand anything in my answer. Happy studying. :)