Answer:
y=2x^3 is nonlinear. This is a cubic function. y = x + 5 is linear. y = sqrt(x-3) is also nonlinear 5x + 5y = 25 is linear. It simplifies to y = -x + 5 if you want it in slope-intercept form y = x^2 / 2 is nonlinear Hope this helps
Step-by-step explanation:
