Is y = 10/x + 20 a nonlinear function

is y=x2−3x+2.25 nonlinear

is y=5x+4 nonlinear both linear and nonlinear linear neither

is y=5x-1 a liner or nonlinear

y=3x²+2 is a Nonlinear; function Linear; function Nonlinear; not a function Linear; not a func...

2x+3y=39 is Nonlinear; not a function Linear; function Linear; not a function

What is this? Nonlinear? Linear? A function or no function? y=3x2+2

Asked by Joe