Answer:
Sarah have bottle of water.
Step-by-step explanation:
We are given that,
Total number of bottles = 5
As, each bottle is divided into 4 portions.
The amount of water per person =
Further, Sarah took 1 portion from each bottle and there are 5 bottles.
So, the amount of water Sarah have = =
Hence, Sarah have bottle of water.
y = -(x + 5)² + 4
The roots are -3 and -7, so:
y = a (x + 3) (x + 7)
Distribute and complete the square:
y = a (x² + 10x + 21)
y = a (x² + 10x + 25 − 4)
y = a (x² + 10x + 25) − 4a
y = a (x + 5)² − 4a
The vertex is (-5, 4), so a = -1.
I created this using a graphing calculator website called Desmos! You can use this to further explore slopes and lines and graphing in general :)