Question

what is the distance between (13,7) (-9,4)

Answer 1

Use the distance formula D = [sqrt[{y2-y1)^2 + (x2-x1)^2}]

Answer 2

distance = root {(x2-x1)^2 + (y2-y1)^2}

Answer 3

root {(x2-x1)^2 + (y2-y1)^2}
\[ =\sqrt{[13-(-9)]^2+[7-4]}=\sqrt{(22^{2})+(3^{2})}=\sqrt{493}=22.2\]

Answer 4

got it???