Which expressions are equivalent to x + 2y + x + 2 ? choose all answers that apply:
a
2(x+y+1)

(choice b)
b
2x + 4y +4

(choice c)
c
none of the above

Which statement best explains whether the table represents a linear or nonlinear function? input (x) output (y) 2 5 4 10 6 15 8 20 it is a linear function because the input values are increasing. it is a nonlinear function because the output values are increasing. it is a linear function because there is a constant rate of change in both the input and output. it is a nonlinear function because there is a constant rate of change in both the input and output.