My college is closed and I am trying to review ahead for the semester. I will provide the link , can someone please explain problem #8 to me ? Thanks so much! It means a lot
http://www.baruch.cuny.edu/sacc/documents/2205AdditionalProblemsfortheFEM.pdf
http://www.baruch.cuny.edu/sacc/documents/2205AdditionalProblemsfortheFEM.pdf
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Recall what information each graph tells you:
f(x) represents the y - values
f ' (x) represents increasing or decreasing
f ' ' (x) represents concavity (up or down)
If f(x) is negative, the graph must lie below the x-axis, because all the y-values are negative.
If f ' (x) is negative, it must be decreasing everywhere.
If f ' ' (x) is negative, the graph must be concave down everywhere.
ANSWER: D
Hope that helps!
f(x) represents the y - values
f ' (x) represents increasing or decreasing
f ' ' (x) represents concavity (up or down)
If f(x) is negative, the graph must lie below the x-axis, because all the y-values are negative.
If f ' (x) is negative, it must be decreasing everywhere.
If f ' ' (x) is negative, the graph must be concave down everywhere.
ANSWER: D
Hope that helps!