The area bounded by the parabola y=x^2 and the lines y=1 and y=9 equals?
what are you suppose to do?
It is hoped that you have just the tiniest introduction to integral calculus. Do you? Without it, you cannot solve it exactly.
You should also recognize and exploit symmetries. Can you? Without this, you will become confused.
Note: What makes this a "Word" problem?
Then you can divide the required region to the right of the y-axis into two parts. One of these parts is a rectangle. The other part is simply the area between the line y = 9 and the curve y = x^2 ......