Friday, August 28, 2015

Find the area bounded by the curve f(x) = x^2 and the line y= 5x-6.

Given the curve f(x) = x^2 and the line y=
5x-6


We need to find the area between the curve and the
line.


First we need to find the intersection
points.


==> x^2 =
5x-6


==> x^2 - 5x + 6 =
0


==> (x-2)(x-3) = 0


==>
x = 2 ==> x = 3


Then we need to find the area between the
interval [ 2, 3].


First we will find the ares under the curve f(x) =
x^2.


==> Int f(x) = Int x^2 dx =
x^3/3


==> A1 = F(3) - F(2) = 27/3 - 8/3 =
19/3.


Then the area under the curve f(x) is A1=
19/3.


Now we will calculate the area under the line
y.


==> Int y = Int 5x -6 dx = 5x^2/2 -
6x


==> Y(3) = (5/2)*9 - 18 = (45-36)/2 =
9/2


==> Y(2) = (5/2)*4 - 12 = 10 - 12 =
-2


==> y(3) - y(2) = 4.5 + 2 = 6.5 =
13/2


Then the area between the line and the curve is
:


A = A2 - A1 = 13/2 - 19/3 =
0.166666


Then the ares is given by 0.16666 square
units.

No comments:

Post a Comment

How is Anne's goal of wanting "to go on living even after my death" fulfilled in Anne Frank: The Diary of a Young Girl?I didn't get how it was...

I think you are right! I don't believe that many of the Jews who were herded into the concentration camps actually understood the eno...