Answer:
the post looks blurry on my end, can you repost so i can help you
Step-by-step explanation:
Answer:
1 triangle por minute
Step-by-step explanation:
1/4 of an hour is 15 min (60/4=15)
Answer:
Positive: 
Negative: 
Step-by-step explanation:
The graph represents a parabola that has a maximum vertex at (1,4).
The portion of the graph above the x-axis is considered positive
For
, the function is positive.
We can write this in interval notation as: 
For
or
, the function is negative.
We can write this in interval notation as: 
The answer to that is 300%