Your answer is negative 32.24.
5) it is a function because each x value only has one y value. Domain: (-infinity,infinity) range: [0,infinity)
6) it is a function. Domain: (-infinity, infinity) Range: [3,3]
7) it is a function. Domain: (-infinity, infinity) range: (-infinity, infinity)
8) it is a function. Domain: [0, infinity) range: [0, infinity)
Sorry it's a bit messy. but I hope you understand and it will help
9 squares because if there are 18 triangles in it then you divide 18 by 2 and get 9
