Solve the following system by graphing.

x - y = 4
x + y = 2

what is the solution of the system?

(3, -1)
(3, 1)
(-1, 3)

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Find the solution of each of the following.