Co -ordinate qs
Tue, 2009-09-29 21:16
Q1. On an axis expressed in kilometers, the co-ordinates of 2 points are A(17, 11) and B(22,23). In how much time does a man travelling at 91kmph cover the shortest possible distance between the two points A and B ?
a. 6 2/7
b. 8 3/7
c. 8 4/7
d. 8 6/7
Q2. If the first point is located at (12, 1) where is the second point on the coordinate grid to have a vertical length of 8 units (up)?
a. (12, 8)
b. (11, 3)
c. (20, 2)
d. None of the above
Q1. On an axis expressed in kilometers, the co-ordinates of 2 points are A(17, 11) and B(22,23). In how much time does a man travelling at 91kmph cover the shortest possible distance between the two points A and B ?
a. 6 2/7
b. 8 3/7
c. 8 4/7
d. 8 6/7
shrtest distance=sroot {(22-17)^2+(23-11)^2}=sroot (25+144)=13
t=d/s=13/91=1/7
n/a
n/a