Question

someone help

Answer 1

-2 + -1 -2 k hold on

Answer 2

you need two points from the graph A and B
A= ( ? ,?)
B= ( ? , ?)
what are x and y values suppose to be in that order pair ?

Answer 3

All of these problems (so far) is dealing with a right triangle. This one is a distance between two points, which again is involving a right triangle.