Is this on a graph if so you need to explain futher
The awnser is one I hope I helped you with this question
Using two point form
y-5/-4-5=x-10/13-10
rearrange to get 3x+y-35=0
Answer: Ooh, okay. Have fun then I guess.
So, these are actually pretty simple once you learn the equality used to solve for "x" and when to implement this method. You can use this equality to solve for a segment "x" anytime that two secant lines cutting through a circle come from the same point outside the circle.
Secant: by geometric definition is just a straight line that cuts a curve into multiple pieces.
I did one of them for you hopefully you can use my work for "a" to help you solve for "b".
For a. I got x=7.