Question

Find distance between points A and B where A(-1,-1), B(8,-2)​

Answer 1

root 82

ite done by distance formula of quadratic equations

Answer 2

Answer:

by distance formula ,

AB=√(x2-x1)^2 + (y2-y1)^2

=√(8+1)2 + (-2+1)2

=√9^2 + -1^2

=√81+1

=√82

therefore distance between points A and B is √82 units