Answer:
h=-7
Step-by-step explanation:
-4(-6h - 7) = 9h + 10h - 7
24h+28=19h-7
Both side -28
24h+28-28=19h-7-29
24h=19h-35
Both side -19h
24h-19h=19h-19h-35
5h=-35
h=-7
There are 100 cm in a meter so 16 cm is equal to 1600/48
Answer:
(-4,1)
Step-by-step explanation:
The given parabola is

When we rewrite in vertex form, we get;

Or

When we compare to:

We have 4p=-4
This means p=-1
But the vertex is at:
(-4,2)
Since it is a vertical parabola that opens down, the focus is one unit(|p|=1) below the vertex.
Hence the focus is (-4,1)
The correct answer is the third one.
Each x value (or domain) can only have one unique output. For example, if I had (2,7), then I could not have (2,14). If I had (3,15), then I could have (3,15) again, because they are the same point. If you need further explanation, just let me know. : )