Question

For questions 10–11, find the solutions of the system.
9. y = x² + 3x – 4
y = 2x + 2 (1 point)
(–3, 6) and (2, –4)
(–3, –4) and (2, 6)
(–3, –4) and (–2, –2)
no solution
10. y = x² – 2x – 2
y = 4x + 5 (1 point)
(–1, 1) and (–7, –23)
(–1, 1) and (7, 33)
(–1, 33) and (7, 1)
no solution
11. If an object is dropped from a height of 144 ft, the function h(t) = –16t² + 144 gives the height of the object after t seconds. When will the object hit the ground? (1 point)
1.5 s
3 s
6 s
9 s

Answer 1

problem 9 solutions - see attachment

Answer 2

solution to problem 11 - see attached file