Triangular Prism.
Hope this helped :)
Let us pretend x is the number.
The equation will be 13-6x=11+4x.
Solve.......
X=2/10
D= domain = farthest left and right
Domain = (3, infinite)
R = range = bottom to top
Range = (2,2)
F(3)={2(3)-9}
F(3)={6-9}
F(3)={-3}
