Question

Find the distance between two points round to the nearest tenth if necessary (10,-8)(4,0)

Answer 1

d = sqrt (x2 - x1)^2 + (y2 - y1)^2
(10,-8)....x1 = 10 and y1 = -8
(4,0)...x2 = 4 and y2 = 0
now we sub
d = sqrt (4 - 10)^2 + (0 - (-8)^2
d = sqrt (-6^2) + (8^2)
d = sqrt (36 + 64)
d = sqrt 100
d = 10 <====