15. add [-6 -2 2] + [-3 2 1].
o a. [-3 0 3]
o b. [-9-3-5]
c. [-6 0 3]
d. 1-9 0 3]

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

What is the slope of the equation y =

Does the point (1, sqrt 7) lie on circle shown.