The third one I think but I am not sure
Answer: 8 is the answer
Step-by-step explanation:
199 idk I hope you get it right tho
2.9. The seven is able a five, so you round up to the next number.
To find the range we need to find the vertex of the parabola which is at (-b/2a , y)
-b/2a would be 2/2 = 1 ... so find the y value at x = 1
12 - 2(1) - 15 = 1-17 = -16
So the vertex is at (1,-16)
Since the parabola opens upward from that point the minimum value of the range is y = -16
The range would include the point -16 so it is actually
R = [-16,infinity)
