Question

Select all equations that represent nonlinear functions.

y=−4x−9
y=−4+2x
y = x + 1
y2=−x+10
y=3x2
y = 8 + x²
y=13x+5

Answer 1

y=3x2
y = 8 + x²
y2=−x+10

This answer. If x2,y2 means squared