Question

Question #30daa

Answer 1

15

Explanation:

You are looking at this area:

If we think in these terms:

• `y_1 = 2x + 4`

• `y_2 = 1 - x^2`

Then the area is simply:

`int_(-1)^2 y_1 - y_2 \ dx`

`= int_(-1)^2 x^2 + 2x + 3 \ dx`

`= [x^3/3 + x^2 + 3x ]_(-1)^2`

`= 15`