Question

Find AB given A(-4,1) and B(3,-1)​

Answer 1

here,

A= (-4,1)= (x1,y1)

B= (3,-1)=(x2,y2)

now,

by using distance formula,

AB^2= (x2-x1)^2+(y2-y1)^2

=(3-(-4))^2+(-1-1)^2

=(3+4)^2+(-2)^2

=49+4

=53

AB= root under 53