Question

find the distance between the points (-3,4) and (1,7)
a. (sqrt)13
b. 5
c. 5(sqrt)5

Answer 1

distance = sqrt (x2 - x1)^2 + (y2 - y1)^2
(-3,4)...x1 = -3 and y1 = 4
(1,7)....x2 = 1 and y2 = 7
now we just sub and solve
d = sqrt ((1 - (-3)^2 + (7 - 4)^2))
d = sqrt ((4^2) + (3^2))
d = sqrt (16 + 9)
d = sqrt 25
d = 5 <=======