Answer:
Explanation:
A. (-2,0) (4,0)
factorization: y=(x+2)(x-4)
B. (1,0) (3,0)
factorization: y=(x-1)(x-3)
10.
A. -16x^2 + 48x + 64
B.
x^2 - 3x -4
= (x-4)(x+1)
zero: (4,0) (-1,0)
C.
zero mean the x-intercept
D. In this situation, only the positve zero which is (4,0) have real-world meaning because the number of seconds since the airplane was thrown cannot be negative.
E. It take 4 seconds for the airplane to hit the water.