Calculate the area bounded by the equations: y= 15 - 3x and y/3 +4 = 2x and the x-axis.

Could you do it step by step and show your working for me?

The answer is 9.

Results 1 to 2 of 2

- July 22nd 2009, 02:41 AM #1

- Joined
- Jul 2009
- Posts
- 4

- July 22nd 2009, 02:49 AM #2

- Joined
- Apr 2005
- Posts
- 15,697
- Thanks
- 1469

Have you tried to do

**anything**at all for yourself? Have you graphed the lines? If so, then you know that you are asked for the area of a**triangle**.

The formula for area of a triangle is (1/2)bh where b is the length of the base and h is the height. Here, b is equal to the difference of x values where the two line cross the x-axis. h is the y value where the two lines cross.