# Calculus

posted by .

Can someone explain this question to me?

What intervals should I use to test whether or not the graph is concave up or down. I know that no points or equations are given so we have to estimate.

Here is the URL for the graph.

imgur dotcom/FdQCV

• Calculus -

Looks like there are inflection points at x = -3/2 and x=2

f is concave down in (-oo,-3/2) and (2,oo)
f is concave up in (-3/2,2)

## Similar Questions

1. ### URGENT! Last calculus question!

Hey! So, I was wondering if someone could answer this. I am mad studying for my exam and I still have a few questions left that I just don't have time to answer, and the assignment is due tomorrow. Thanks and here is the question: …
2. ### Calculus

Let f be the function defined for x >or= to 0 with f(0)=5 and f', the first derivative of f, give by f'(x)=e^(-x/4)sin(x^2). A) Use the graph of f' to determine whether the graph of f is concave up, concave down, or neither on the …
3. ### Calculus-concave up and down

Can someone explain this question to me? What intervals should I use to test whether or not the graph is concave up or down. Here is the URL for the graph. imgur dotcom/FdQCV
4. ### calculus

Let f (x) = x^2 + 5x-14. Find the open intervals on which f is concave up (down). Then determine the xcoordinates of all inflection points of f 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inflection …
5. ### calculus

Let f (x) = x3 ��3x2 +5x+2. Find the open intervals on which f is concave up (down). Then determine the x-coordinates of all inflection points of f . 1. f is concave up on the intervals 2. f is concave down on the intervals …
6. ### calculus

Let f (x) =7x-5/x+3 . Find the open intervals on which f is concave up (down). Then determine the xcoordinates of all inflection points of f . 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inflection …