I'm assuming you meant to write y=-2x^2-3
There are 2 basic ways to find the vertex.
Since you're in algebra (I'm assuming) plug it into -b/2a. This will give you the x value for the turning point.
-b/2a
0/2(-2)
0
Now plug in 0 to the equation to get the y value.
y=-2(0)^2-3
y=-3
Ok so the point is (0,-3)
Best of luck!
If a=2 then you would have u=3b-2(2) or u=3b-4 :)
Plug the value of x in the equation
2(6 - y) = 8
12 - 2y = 8
-2y = -4
y = 2
Answer:
D
Step-by-step explanation:
Answer:
55%
Step-by-step explanation:
44 ÷ 80 = 0.55 = 55%
