Question

whats the distance EA for the points E(–8, –2) and A(4, 1)

Answer 1

To find the distance between two points, use the distance formula, which is sqrt[(ysub2-ysub1)^2+(xsub2-xsub1)^2].

Substitute the coordinates in so you have:

d=sqrt{[4-(-8)]^2+[1-(-2)]^2}

d=sqrt(12^2+3^2)

d=sqrt(144+9)

d=sqrt153

d=3sqrt17=approx. 12.369