Answer:
you got there answer correct
Step-by-step explanation:
the lines all follow the answer
Your answer is x = 78! Hope this helps!
1-d
2-c
3-e
4-b
5-a
It's very simple. Try..
Step-by-step explanation:
Inflection points are where a function changes concavity (the second derivative changes signs). At x = 4, f"(x) goes from negative to positive, so that's an inflection point. However, at x = 8, we don't know if f"(x) changes signs or not. So we can't say that that's an inflection point.
