Question

Determine which two equations have nonlinear graphs.

Answer 1

The slope-intercept form of linear function:

$y=mx+b$

$y=2x^3$ - nonlinear

$y=3x$ - linear

$y=2x+\dfrac{1}{2}$ - linear

$y=x^2+2$ - nonlinear

$y=0.5x+3$ - linear