Hello, TAHIR!
I assume you are new to this type of problem.
. . I'll give you a leisurely walkthrough.
Find the volume of the solid that results when the region enclosed by the given curves
is revolved about the xaxis: . First, make a sketch . . .
The first is an upopening parabola with yintercept 1.
The second is an upsloping line with yintercept 3. Code:
 /
*  *
 /:.
 /:::.
*  /::::*.
 /::::: .
 /:::::: .
* 3*::::::* .
/:::::: .
*::::::* .
/ :::: .
/ . *1 .
/ .  .
 /    +  +      + 
/ 1  2

For their intersections, equate the functions.
. .
Hence, they intersect at: .
The "upper" function is: .
The "lower" function is: .
The "washer" formula is: .
Hence, we have: .
Can you finish it now?