Answer:
21/2 = 10.5
y = 10.5*hours
z+10
Step-by-step explanation:
i did it on paper this is what i got!!!!
4.48,2 1/2,-2 3/4,-3.75
6.55 months? i dont know for sure but i tried
x = 2
The minimum point of the curve is (2, 0). Hence, axis of symmetry is x = 2