Write the ratio in two different ways. (6.pa.1)
4. 8 to 12
5. 7: 2
7. 11 to 3
6.
5: 9
1
atoa
11: 3
8: 12
stol
write two equivalent ratios. (5.ap.a.38)
8.
onia
10.
11.13
on mircuting dompany
find the unknown value. (6.p.a.3a)
12. 15 = 20 13. i = 22
14.16 = 8
15.

y=-x^2-4x

Step-by-step explanation:

y=ax^2+bx+c

0=a(0)^2+b(0)+c

c=0

0=a(-4)^2+b(-4)+0

0=16a-4b

0=48a-12b

3=a(-3)^2-3b

0=9a-3b-3

0=36a-12b-12

48a-12b=36a-12b-12

12a=-12

a=-1

16a=4b

4a=b

b=4(-1)

b=-4

y=-x^2-4x

Hope this helps. I did it a longer way because sometimes the width varies, but for this one there is a zero at x=0 and x=-4 and the slope is negative so you can do y=-x(x+4)=-x^2-4x. Anyways... have a nice night.