## dakotajason27 Group Title Find the total area of the region between the curve and the x axis. Y=x^3-4x -2<_x<_2 one year ago one year ago

1. dakotajason27 Group Title

I dont think my teacher wants us to integrate it! is there an alternate way?

2. PhoenixFire Group Title

You can use a summation of areas of rectangles under the graph. |dw:1354592872973:dw| Width of each rectangle will be: $w={{b-a}\over n}$Where b=right limit=2 a=left limit=-2 n=number of rectangles. Then: $\sum_{n=1}^{n} w f(a+wn)$ But because the graph goes into the negative you'll need to find the area of -2<=x<=0 and add on the area of 0<=x<=2 to get the total area.

3. dakotajason27 Group Title

alright ill give it a shot thanks!

4. PhoenixFire Group Title

If you don't understand any part, just ask. Good Luck