Question

Find the distance between the points(-9,8) and (7,-10) if one unit represents one kilometer

Answer 1

√X2-X1+√Y2-Y1

=√7-(-9) +√-10-8

=√16 + √-18

=4 + -(√18)

=4 + (-3√2)

=-0.24

Explanation:

by answering this you must use the distance formula and label -9 as X1 , 8 as Y1 and 7 as X2 , -10 as Y2 then you put X2-X1 in the same root sine do the same at Y2-Y1.