Question

Find the area that is formed by the functions: x=4, y=-1, y=-2 and y=-x?

I know that the figure is below the x-axis, so i dont get what to do, please help me

Answer 1

2.5 square units

Explanation:

It is a trapezium in shape, y=-1 and y=-2 are the two parallel sides, x =4 forms the right hand side and y=-X forms the left hand side.
The formula for the area of a trapezium =`1/2(a+b)h` where `a` and `b` are the parallel sides and `h` is the height.

Area=`1/2(3+2)1` = `5/2`